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1
00:00:20,820 --> 00:00:25,160
ุจุงุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ูŠูˆู… ุฅู† ุดุงุก ุงู„ู„ู‡ ุณู†ูƒู…ู„

2
00:00:25,160 --> 00:00:35,700
ุงู„ุญู„ู‚ุฉ ุงู„ุณุงุฏุณุฉ ุนุฑุถ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุณุฃุจุฏุฃ ุจูƒูŠู ูŠู…ูƒู†ู†ุง

3
00:00:35,700 --> 00:00:40,420
ุงุณุชุฎุฏุงู… ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ู…ู‚ุนุฏ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ

4
00:00:40,420 --> 00:00:48,880
ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ ุนุดูˆุงุฆูŠ

5
00:00:56,140 --> 00:01:04,080
ุงู„ุณุคุงู„ ู‡ูˆ ูƒูŠู ูŠู…ูƒู†ู†ุง ุชุฎุทูŠุท ู‡ุฐู‡ ุงู„ูˆุงู‚ุนุงุช ุฅุฐุง ูƒุงู†ุช

6
00:01:04,080 --> 00:01:12,420
ุงู„ุชูˆุฒูŠุน ุทุจูŠุนูŠ ูƒูŠู ู…ู…ูƒู† ู†ุญุณุจ ุงู„ูˆุงู‚ุนุงุช ููŠ ุงู„ุจูŠุงู†ุงุช

7
00:01:12,420 --> 00:01:18,940
ุงู„ูˆุงู‚ุนุงุช ูŠุนู†ูŠ ุงู„ู…ู†ุทู‚ุฉ ุงุญุชู…ุงู„ ู…ุนู†ุงู‡ ููŠ ุงู„ุญุตุฉ ุงู†

8
00:01:18,940 --> 00:01:21,200
ุงู„ู…ู†ุทู‚ุฉ ุชุญุช ุงู„ู…ุฎุทุท

9
00:01:23,840 --> 00:01:27,980
we are going to use the standardized normal table

10
00:01:27,980 --> 00:01:31,320
it's located at the end of your book ู„ูˆ ุทู„ุนุช ุนู„ู‰

11
00:01:31,320 --> 00:01:41,180
ุงู„ูƒุชุงุจ ููŠ ุงู„ุขุฎุฑ ููŠ ุนู†ุฏู†ุง table ุฃูˆุฑูŠูƒูŠุง ููŠ ุงู„ุขุฎุฑ

12
00:01:41,180 --> 00:01:42,940
ุฎุงู„ุต ูŠุนู†ูŠ ููŠ tables

13
00:01:50,580 --> 00:01:53,740
ูŠุงุฑูŠุช ุงู„ูƒู„ ูŠูุชุญ ุนู„ู‰ ุงู„ุชุงุจุฑ ููŠ ู†ู‡ุงูŠุฉ ุงู„ูƒุชุงุจุŒ ุฃูŠ

14
00:01:53,740 --> 00:01:59,600
ุตูุญุฉ ุจุฏูˆุฑ ุนู„ูŠู‡ุŸ ู…ูŠุชูŠู† ุชุณุนุฉ ูˆ ุณุจุนูŠู† ู…ูŠุชูŠู† ุชุณุนุฉ ูˆ

15
00:01:59,600 --> 00:02:12,900
ุณุจุนูŠู† ุฅุฐุง

16
00:02:12,900 --> 00:02:14,100
ู‡ูŠ ุงู„ูƒุชุงุจ ุงู„ู„ูŠ ู…ูˆุฌูˆุฏ ุนู†ุฏูƒ

17
00:02:22,470 --> 00:02:27,630
ุฎู„ุงุต ุงู„ูƒู„ ูุงุชุญ ุนุงู… 1979 this

18
00:02:27,630 --> 00:02:32,830
table gives the area to the left of z ุจูŠุนุทูŠ ุฏุง

19
00:02:32,830 --> 00:02:41,770
ุงู„ู…ุณุงุญุฉ ุนู„ู‰ ุงู„ุดู…ุงู„ ุงุฐุง ุงู„ table provides the

20
00:02:41,770 --> 00:02:47,270
probability to

21
00:02:47,270 --> 00:02:55,780
the left of z valueุงู„ุฃู† ู…ุงุฐุง ูŠุนู†ูŠ ู‚ูŠู…ุฉ zุŸ ูŠุนู†ูŠ ุฅุฐุง

22
00:02:55,780 --> 00:03:02,320
ูƒุงู† ู„ุฏูŠู†ุง x ู…ุณุชุนู…ู„ ุจุดูƒู„

23
00:03:02,320 --> 00:03:06,760
ุนุงู… ุจู…ุนู†ู‰

24
00:03:06,760 --> 00:03:19,060
ู…ูŠูˆ ูˆู…ุนู†ู‰ ุณูŠุฌู…ุง ุซู…

25
00:03:19,060 --> 00:03:25,670
ูƒูŠู ู†ุฌุฏ zุŸX ุนุงู…ุฉ ูŠุนู†ูŠ ู…ูŠูˆู† ู…ูŠูˆู† ู…ูŠูˆู† ู…ูŠูˆู† ู…ูŠูˆู†

26
00:03:25,670 --> 00:03:28,390
ู…ูŠูˆู† ู…ูŠูˆู† ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

27
00:03:28,390 --> 00:03:34,250
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

28
00:03:34,250 --> 00:03:34,290
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

29
00:03:34,290 --> 00:03:34,350
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

30
00:03:34,350 --> 00:03:36,010
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

31
00:03:36,010 --> 00:03:50,770
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…

32
00:03:51,790 --> 00:03:54,930
ู„ุฐู„ูƒ ู…ุฑุฉ ุฃุฎุฑู‰ุŒ ุงู„ุทุงุจู‚ ุงู„ู„ูŠ ู„ุฏูŠู†ุง ูŠู…ู†ุญ ุงู„ู…ู†ุทู‚ุฉ ุฃูˆ

33
00:03:54,930 --> 00:04:01,050
ูŠู…ู†ุญ ุงู„ู…ู†ุทู‚ุฉ ุฅู„ู‰ ุงู„ูŠุณุงุฑ ู…ู† ุงู„ู€ z-score ุฅุฐุง ูƒู†ุง

34
00:04:01,050 --> 00:04:07,910
ู†ู†ุธุฑ ุฅู„ู‰ ู‡ุฐุง ุงู„ุทุงุจู‚ุŒ ุงู„ุทุงุจู‚ ูŠุจุฏุฃ ุจู€-3.4 ุซู… ู†ุญู†

35
00:04:07,910 --> 00:04:12,270
ู„ุฏูŠู†ุง ู†ู‚ู„ 3.3 ูˆู…ุง ุฅู„ู‰ ุฐู„ูƒุŒ ู„ุฐู„ูƒ ู„ู„ุฑู‚ู…ูŠู†ุŒ ู„ุฏูŠู†ุง z

36
00:04:12,270 --> 00:04:18,670
-score ู„ู…ูƒุงู†ูŠู† ู…ุญุฏุฏุฉ ูˆุงุญุฏุฉ ุจุณ ู„ุนู„ุงู…ุฉ ุนุดุฑูŠุฉ ูˆุงุญุฏุฉุŒ

37
00:04:18,670 --> 00:04:25,630
ุชู„ุงุญุธุŸ negative 3.4-3.3 ูˆู…ุง ุฅู„ู‰ ุฐู„ูƒ ูˆุงุถุญ ุฃู†ู†ุง ู†ุฃุฎุฐ

38
00:04:25,630 --> 00:04:28,830
ุนู„ุงู…ุฉ ุนุดุฑูŠุฉ ูˆุงุญุฏุฉ ููŠู† ุงู„ู€ second decimal places

39
00:04:28,830 --> 00:04:33,750
ู…ูˆุฌูˆุฏุฉ ูˆูŠู† ููŠ ุงู„ columns ู‡ุงูŠ ุงู„ columns ุจุชู…ุซู„ ุงู„

40
00:04:33,750 --> 00:04:36,650
second decimal places ุงู„ุนู„ุงู…ุฉ ุงู„ุนุดุฑูŠุฉ ุงู„ุชุงู†ูŠุฉ ููŠ

41
00:04:36,650 --> 00:04:43,370
ุงู„ุนู…ุฏุฉ ูŠุนู†ูŠ ู„ูˆ .. ู„ูˆ ุนุงูŠุฒ ุงู„ probability of z less

42
00:04:43,370 --> 00:04:45,470
than negative 3.3

43
00:04:48,020 --> 00:04:51,480
ุงู„ุงู† ู„ุฏูŠู†ุง ู…ู‚ุงุฑู†ุฉ ุฒูŠ ุฐู„ูƒ ุจุงู„ูุนู„ ู„ุฐู„ูƒ ุงู‚ูˆู… ุจุงู‚ูŠู…ุฉ

44
00:04:51,480 --> 00:04:57,100
ุงู„ู€-3.3 ู‡ุฐุง ู‡ูˆ ุงู„ู€-3.3 ุงู„ุขู† ู…ุงู‡ูˆ ุงู„ู…ูƒุงู† ุงู„ุซุงู†ูŠ

45
00:04:57,100 --> 00:05:04,220
ุจุงู„ู…ู‚ุงุฑู†ุฉุŸ ู„ู…ุง ุจุญูƒูŠ negative 3.3 ู…ุด ู…ู…ูƒู† ุงูƒุชุจ

46
00:05:04,220 --> 00:05:08,720
ุจู‡ุงูŠูƒ negative 3.30 ู…ุน ูƒุฏู‡ ุงู„ second ุนุจุงุฑุฉ ุนู† ุงูŠุดุŸ

47
00:05:08,720 --> 00:05:15,910
ุงู„ decimal ุนุจุงุฑุฉ ุนู† ุฒูŠุฑูˆ ู…ุธุจูˆุท ู„ู…ุง ุจูƒุชุจ ู†ู‚ุต 3.3ู…ุด

48
00:05:15,910 --> 00:05:21,830
ู…ู…ูƒู† ุงูƒุชุจู‡ ู†ุงู‚ุต 3.30ุŸ ูŠุนู†ูŠ ู†ุงู‚ุต 3.3 ู…ุนู†ุงู‡ ู†ุงู‚ุต 3

49
00:05:21,830 --> 00:05:32,530
.30 now what's the value under negative 3.3ุŸ

50
00:05:32,530 --> 00:05:38,030
ุทู„ุน ุงู„ูƒุชุงุจ ุงู„ู„ูŠ ู…ุนุงูƒ ุงูุชุญ ุงู„ุฌุฏูˆู„ ููŠ ุงู„ุขุฎุฑ ููŠ ูƒุชุงุจ

51
00:05:38,030 --> 00:05:42,830
ููŠ table ุทู„ุน ุนู„ูŠู‡ ู†ุงู‚ุต 3.3 ูƒุฏู‡ ุชุญุช ุงู„ุตูุฑุŸ

52
00:05:45,580 --> 00:05:52,240
0,0,5ุŒ 3,0,5 ุดูุชูˆุง

53
00:05:52,240 --> 00:05:55,380
ุงู„ุฎู…ุณุฉ ู„ุชุงุฆู„ ู…ู‚ุงุจู„ ุชู„ุงุชุฉ point ุชู„ุงุชุฉ ุชุญุช ุงู„ zero

54
00:05:55,380 --> 00:06:01,640
ุทุจ ู„ูˆ ู…ุด ุนุงูŠุฒ ุชู„ุงุชุฉ point ุชู„ุงุชุฉ negative three

55
00:06:01,640 --> 00:06:06,400
point three six one decimal place three point

56
00:06:06,400 --> 00:06:12,420
three ู‡ูŠ ูˆ ุงู†ุง ู‡ู…ุดูŠ second decimal ุณุชุฉ ุจู…ุดูŠ ุนู„ู‰ ุงู„

57
00:06:12,420 --> 00:06:12,680
six

58
00:06:15,990 --> 00:06:25,630
ู„ูŠู‡ ู‡ุฐุง ู…ุธุจูˆุทุŸ ุฅูŠุด ุงู„ุฌูˆุงุจ ุจุชุทู„ุนุŸ ู…ุนุงูƒ

59
00:06:25,630 --> 00:06:33,350
ูƒุชุงุจูƒ ู…ุธุจูˆุทุŸ ุทู„ุน ุงู„ูƒุชุงุจ 0.0004

60
00:06:33,350 --> 00:06:43,850
Z less than negative 2.43 ุทู„ุน

61
00:06:43,850 --> 00:06:52,150
ุงู„ูƒุชุงุจ ุงู„ู„ูŠ ู…ุนุงูƒ-2.4 ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

62
00:06:52,150 --> 00:06:57,870
ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

63
00:06:57,870 --> 00:07:01,410
ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

64
00:07:01,410 --> 00:07:01,430
ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

65
00:07:01,430 --> 00:07:01,450
ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

66
00:07:01,450 --> 00:07:01,550
ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง ุชู‚ุฑูŠุจุง

67
00:07:15,540 --> 00:07:22,600
ูˆุงุตู„ ู„ุบุงูŠุฉ ูˆูŠู†ุŸ zero ุงู„ุงู†

68
00:07:22,600 --> 00:07:28,920
ุนู†ุฏ ุงู„ zero ุฅูŠุด ุงู„ุฌูˆุงุจ ู…ูˆุฌูˆุฏุŸ

69
00:07:28,920 --> 00:07:32,460
ุทู„ุน .. ุจุงู„ู„ู‡ ุทู„ุน ุฌูŠุจ ุณูŠูƒ ููŠ ุงู„ุดุงุดุฉ ุงู„ู„ูŠ ุนู†ุฏูƒ ู…ุนุงูƒ

70
00:07:32,460 --> 00:07:39,500
ุงู„ูƒุชุงุจ ุงู„ zero ุชุญุช ุงู„ zero ุฒูŠ ุฃู‚ู„ ู…ู† zero ุฅูŠุด

71
00:07:39,500 --> 00:07:43,320
ุจุชุณูˆูŠุŸ point five ู…ุด ู‡ูŠูƒุŸ

72
00:07:47,000 --> 00:07:58,160
ู‡ู„ ู‡ุฐุง ุงู„ุฅุฌุงุจุฉ ู…ู†ุทู‚ูŠ ุจุงู„ู†ุณุจุงู„ูƒุŸ ู„ุฃ ุฃุญุณู† ู„ุฃู†

73
00:07:58,160 --> 00:08:04,160
ู‡ุงูŠ ุงู„ู€ zero ุงู„ Z ู„ู‡ normal with mean zero ู…ุด ู‡ูŠูƒุŸ

74
00:08:04,160 --> 00:08:08,700
ุญูƒูŠู†ุงู‡ุง ู…ุฑุฉ ูุงุชุฑุฉ Z score ู„ู‡ mean equal zero sigma

75
00:08:08,700 --> 00:08:13,780
one ู…ุธู„ูˆูƒุŸุงู„ู„ูŠ ู„ู…ุง ุจุญูƒูŠ ุงุญุชู…ุงู„ุฒ ู‡ูŠ ุงู‚ู„ ู…ู† zero

76
00:08:13,780 --> 00:08:18,220
ุงู„ู…ุณุงุญุฉ ุฏูŠ ูƒู„ู‡ุง ุงู„ area ูƒู„ู‡ุง ุฅูŠุด ุจุชุณุงูˆูŠ ุฃุญูƒูŠู‡ุง

77
00:08:18,220 --> 00:08:20,700
ุงู„ู…ุฑุฉ ุงู„ูุงุชุฉ ุงู„ area underneath the normal curve

78
00:08:20,700 --> 00:08:27,860
equals one ุฅุฐุง ูƒู„ู‡ุง ูˆุงุญุฏ ูˆ ู‡ุฐุง ุงู„ mean ูˆ ู‡ุฐุง ุงู„

79
00:08:27,860 --> 00:08:33,320
mean ููŠ ุงู„ู†ุต ูˆ ูƒู„ู‡ุง ูˆุงุญุฏ ู†ุต ู†ุต ูุจุงู„ุชุงู„ูŠ ุงู†ุง one

80
00:08:33,320 --> 00:08:38,380
half ูˆ ู‡ุฐู‡ one half ูุจุงู„ุชุงู„ูŠ ู„ู…ุง ูŠุทู„ุน ู†ุต ุฃูƒูŠุฏ ูŠุฌูŠุจ

81
00:08:38,380 --> 00:08:45,960
ุตุญ ู†ุดู†ุช ูู„ุณูุฉ ูƒุชูŠุฑุฃูŠู‡ ุงู„ุตูุฑ ุจุตูุฑ ู†ุตู ูุงู„ table

82
00:08:45,960 --> 00:08:50,200
ุงู„ู„ูŠ ุนู†ุฏูƒ ุชุจุน ุงู„ negative z ุงู„ probabilities ู…ู†

83
00:08:50,200 --> 00:08:59,380
zero ู„ุบุงูŠุฉ ู†ุต ู…ู†ุทู‚ูŠุงูƒ ุงู„ุตูุญู‡ ุงู„ุชุงู†ูŠุฉ ุจูŠุจุฏุฃ

84
00:08:59,380 --> 00:09:05,620
ู…ู† ูˆูŠู† ู…ู† zero ุทูŠุจ ุจูŠุงุฎุฏ ูŠุนู†ูŠ ุงู„ positive z scores

85
00:09:05,620 --> 00:09:09,100
ุทุจ ุฎุฏ ู…ุน ุงู„ positive ุงุนุทูŠูƒูŠ ุดูˆูŠุฉ ุฃู…ุซู„ุฉ

86
00:09:11,960 --> 00:09:19,160
ู„ูˆ ุนุงูŠุฒ ุงุญุชู…ุงู„ Z ุฃู‚ู„ ู…ู† 1.56 ุจุฏูŠ

87
00:09:19,160 --> 00:09:23,460
ูˆุงุญุฏุฉ ุชุทู„ุน ูˆ ุชูˆุฑูŠู†ูŠู‡ุง ุนู„ู‰ ุงู„ุดุงุดุฉ ูˆุงุญุฏุฉ ุชุทู„ุน ูˆ

88
00:09:23,460 --> 00:09:27,020
ุชูˆุฑูŠู†ูŠู‡ุง ุนู„ู‰ ุงู„ุดุงุดุฉ ุจุฏูŠ ุฃุจุทู„ ุฃุดุฑุญ ุงู„ุฏู‚ุงุก ู‡ุฐุง ูˆ

89
00:09:27,020 --> 00:09:32,560
ุงู„ุฅุฌุงุจุฉ ุฎู„ูŠูƒู… ุฃุบู„ุจูƒู… ูˆ ุฃู†ุชู… ุชุดุฑุญูˆุง ู…ุงููŠ ูƒู„ุงู… ุชุงู†ูŠ

90
00:09:32,560 --> 00:09:33,400
ู‡ู†ุง ุฎุฏูŠ ู‡ุฐุง

91
00:09:54,620 --> 00:09:57,820
ุฎู„ุงุต ุงูƒุชุจ ุงู„ุฌูˆุงุจ ู‡ู†ุง ุงูƒุชุจ ุงู„ุฌูˆุงุจ

92
00:10:13,230 --> 00:10:26,690
-1.5 ุชุญุช ุงู„ 6 9406 ุจุณ ููŠู‡ ุงู„ point ุจุณ ุจุณ

93
00:10:26,690 --> 00:10:26,930
ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ

94
00:10:26,930 --> 00:10:27,470
ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ

95
00:10:27,470 --> 00:10:27,550
ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ

96
00:10:27,550 --> 00:10:27,890
ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ

97
00:10:27,890 --> 00:10:31,270
ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจุณ ุจ

98
00:10:33,010 --> 00:10:41,190
ุงู„ุฌุฏูˆู„ ุงู„ุจุฏุก ู…ู† 0 ู„ุบุงูŠุฉ ุฃูŠู†ุŸ ู„ู€ 3.4 ุฅูŠุด ุงู„ุฌูˆุงุจ

99
00:10:41,190 --> 00:10:50,110
ุงู„ุณุงูˆูŠุŸ ุชุญุช ุงู„ู€ 0 9997 ุฎู„ู‘ูŠู†ูŠ

100
00:10:50,110 --> 00:10:58,810
ุฃูƒู…ู„ ุทุจ ุฅูŠุด ุฃูƒุจุฑ ู‚ูŠู…ุฉ ู„ู„ู€ ZุŸ 3.4 ุชุญุช ู…ูŠู†ุŸ ุชุญุช

101
00:10:58,810 --> 00:11:06,850
ุงู„ุชุณุนุฉู…ุธุจูˆุทุŸ ุทูŠุจ ุงุญุชู…ุงู„ B of Z less than 3.49 ุงูŠุด

102
00:11:06,850 --> 00:11:14,170
ุณูˆุชุŸ ุงุฎุฑ ูˆุงุญุฏุฉ 9998 ู…ุน ูƒุฏู‡ ุทู„ุนุช ุนู„ู‰ ุงู„ two tables

103
00:11:14,170 --> 00:11:18,930
ุงู„ุฃูˆู„ ู…ู† zero ู„ุบุงูŠุฉ ู†ุต ูˆู‡ุฐุง ู…ู† ู†ุต ู„ุบุงูŠุฉ ุชู‚ุฑูŠุจุง

104
00:11:18,930 --> 00:11:26,490
ูˆูŠู†ุŸ ุงู„ูˆุงุญุฏ ูŠุนู†ูŠ ุงู†ุง ู„ูˆ ุทู„ุนุช ุนู„ู‰ ุงู„ุฑุณู…ุฉ ู‡ุฐู‡ ุจุชุงุนุฉ

105
00:11:26,490 --> 00:11:27,230
ุงู„ positive Z

106
00:11:32,510 --> 00:11:39,170
ูˆู‡ูŠ 3.49 ุงู„ area to the left ุงู„ู…ุณุงุญุฉ ู‡ุฐู‡ ู…ุด ู‡ูŠูƒ

107
00:11:39,170 --> 00:11:51,790
ุงูŠุด ุณูˆุช ุชู‚ุฑูŠุจุง ุงู„ู„ูŠ ุทู„ุนู†ุง ุชุญุช 998 ู…ุธุจูˆุท ู„ูˆ ูƒุจุฑุชู‡ุง

108
00:11:51,790 --> 00:12:00,630
ุดูˆูŠุฉ ูŠุนู†ูŠ ู…ุด 3.49 ุฃุฎุฏู†ุงู‡ุง ุฒูŠ less than 4.65 ุงู„ 4.6

109
00:12:00,630 --> 00:12:04,690
ู…ุด ู…ูˆุฌูˆุฏุฉุจุณ ุฃู†ุง ู„ูˆ ุฏุฎู„ุช to the right ู…ุดูŠุช ู„ุฌูˆู‡ ุนู„ู‰

110
00:12:04,690 --> 00:12:11,050
ุงู„ูŠู…ูŠู† ู…ุงุดูŠู†ุง ู‡ู†ุง 4

111
00:12:11,050 --> 00:12:15,250
.65 ูˆ ุจุฏู‘ูŠ ุงู„ู…ุณุงุญุฉ to the left ู…ุด ู‡ุถูŠูู‡ุง ุฏู…ุงุญู‡ุง

112
00:12:15,250 --> 00:12:20,170
ุญุตูŠู‡ุง ุชู‚ุฑูŠุจุง ุฅูŠุดุŸ ูˆุงุญุฏ ููŠ ุฃูŠ ู‚ูŠู…ุฉ ู…ุด ู…ูˆุฌูˆุฏุฉ ููŠ

113
00:12:20,170 --> 00:12:26,150
ุงู„ุฌุฏูˆู„ ู…ุนู†ุงู‡ ุฌูˆุงุจ ู…ุงู„ู‡ close to one ู„ุฃู†ู‡ุง ู…ุด

114
00:12:26,150 --> 00:12:29,650
ู…ูˆุฌูˆุฏุฉ ููƒู„ ู…ุง ุงุฏุฎู„ูŠ ุนู„ู‰ ุงู„ูŠู…ูŠู† ุงู„ู…ุณุงุญุฉ ุนุงู…ุฉ ุจุชู‚ุชุฑุจ

115
00:12:29,650 --> 00:12:33,750
ู…ู† ูˆุงุญุฏุทุจ ู†ูุณ ุงู„ุดูŠุก ู„ูˆ ุทู„ุนุช ุนู„ู‰ ุงู„ negative ุฒู‰ุŸ

116
00:12:33,750 --> 00:12:37,110
ุงู„ู„ู‰ ู…ูˆุฌูˆุฏ ุนู†ุฏู‰ ู„ุบุงูŠุฉ ูˆูŠู†ุŸ negative three point

117
00:12:37,110 --> 00:12:42,650
zero ู…ุธุจูˆุท ูˆ ุชุณุนุฉ ููŠ ุงู„ุขุฎุฑ ูŠุนู†ูŠ ุจุชุงุน ุงู„ negative

118
00:12:42,650 --> 00:12:47,870
ู‡ูŠู‡ ุฃุฎุฑ ู‚ูŠู…ุฉ ุฎุงู„ุต ู‡ูŠ negative three point four

119
00:12:47,870 --> 00:12:51,610
nine ุฅูŠุด ุงู„ area to the leftุŸ zero zero zero zero

120
00:12:51,610 --> 00:12:54,950
ุงุชู†ูŠู† ู…ุด ู‡ูŠูƒ ูŠุนู†ูŠ ุงู„ู…ุณุงุญุฉ ู‡ุฐู‡ ู‡ูŠูƒ ุงู„ area

121
00:12:54,950 --> 00:13:00,780
probability point zero zero zero ุงุชู†ูŠู†ู„ูˆ ุนุงูŠุฒ ุฃู‚ู„

122
00:13:00,780 --> 00:13:09,500
ู…ู†ู‡ุง ูŠุนู†ูŠ ู‡ุฐุง ุงุญุชู…ุงู„ z ุฃู‚ู„ ู…ู† negative 3.49 ุงู„ุฌูˆุงุจ

123
00:13:09,500 --> 00:13:16,660
0002 ู„ูˆ ุนุงูŠุฒ ุฃุตุบุฑ ู…ู†ู‡ุง ูŠุนู†ูŠ ุนุงูŠุฒ ู…ุด negative 3.49

124
00:13:16,660 --> 00:13:20,540
suppose we are interested in b of z less than

125
00:13:20,540 --> 00:13:28,660
negative 4.8 4.8 ุจุงู„ุนุฑุจูŠ ู‡ูŠูƒ negative 4.8 ูˆูŠู† ุฌุงูŠุฉ

126
00:13:29,640 --> 00:13:34,520
ุนู„ู‰ ุงู„ุดู…ุงู„ ุฃูƒุชุฑ ู…ุธุจูˆุท ู‡ูŠ negative 4.8 ู„ุฃู† ุงู„ู…ุณุงุญุฉ

127
00:13:34,520 --> 00:13:39,100
ุนู„ู‰ ุงู„ุดู…ุงู„ ู…ุด ู…ุชุณุงูˆูŠ ุฃุตุบุฑ ู…ู† ุงู„ู„ูŠ ูุงุชุช ูŠุนู†ูŠ ุชู‚ุฑูŠุจุง

128
00:13:39,100 --> 00:13:45,400
zero ุฅุฐุง ุฃูŠ ู‚ูŠู…ุฉ ู…ุด ู…ูˆุฌูˆุฏุฉ ููŠ ุงู„ negative zero ุฃูŠ

129
00:13:45,400 --> 00:13:48,600
ู‚ูŠู…ุฉ ู…ุด ู…ูˆุฌูˆุฏุฉ ููŠ ุงู„ positive ุฃูƒุชุฑ ู…ู† 3.4 ุชุนุชุจุฑ

130
00:13:48,600 --> 00:13:56,120
ูˆุงุญุฏ ุฎู„ุงุต ุทูŠุจ ุฎู„ูŠู†ูŠ ุฃุฑุฌุน ู„ู„ slide ุชุงู†ูŠ ููŠ ุฃูŠ ุณุคุงู„

131
00:13:56,120 --> 00:14:00,130
ููŠ ุงู„ุฃูˆู„ุงู„ูƒู„ู…ุชูŠู† ุงู„ู„ูŠ ุฃู†ุง ุญูƒูŠุชู‡ุง ู…ู‡ู…ุงุช ุฌุฏุง ู…ุน

132
00:14:00,130 --> 00:14:04,790
ุงู„ู…ู…ุงุฑุณุฉ ุชุนู…ู„ ุงู„ practice ุฃูƒุชุฑ ุทุจุนุง ุงู„ practice ููŠ

133
00:14:04,790 --> 00:14:12,410
ุนู†ุฏูƒ practice ู„ู„ chapter ู…ูˆุฌูˆุฏ ููŠ ู†ุงูŠุฉ ุงู„ูƒุชุงุจ ุฎู„ู‘ูŠ

134
00:14:12,410 --> 00:14:18,330
ุจุงู„ูƒ ู…ุนุงูƒ ุฎู„ู‘ูŠ ู†ุจุฏุฃ ูˆุงุญุฏุฉ ูˆุงุญุฏุฉ ุงู„ู„ูŠ

135
00:14:18,330 --> 00:14:24,070
ุฃู†ุง ุนุงูŠุฒู‡ ู…ู†ูƒ ุชู†ุชุจู‡ ุจุณ ูˆุงูุชุญ ุงู„ูƒุชุงุจ ุนู„ู‰ ุงู„ุฃุฎุฑ ุนู„ู‰

136
00:14:24,070 --> 00:14:28,360
ุงู„ุฃุฎุฑ ุตูุญุฉ ุงู„ู„ูŠ ููŠู‡ุง ุงู„ tableุจุณ ุณูŠุจูƒ ุฎู„ูŠูƒูŠ ุนู„ู‰ ุงู„

137
00:14:28,360 --> 00:14:33,160
table ุงู„ูŠูˆู… ุฎู„ูŠูƒูŠ ุนู„ู‰ ุงู„ table

138
00:14:33,160 --> 00:14:38,280
ุงู„ู„ูŠ ุฃู†ุง ุจู†ุตุญูƒ ุชุญุงูˆู„ูŠ ุชุตูˆุฑ ุงู„ tables ู‡ุฏูˆู„ ุฎู„ูŠู‡ู…

139
00:14:38,280 --> 00:14:42,020
ู…ุนุงูƒ ุทุจุนุง ููŠ ุงู„ุงู…ุชุญุงู† ุฃู†ุง ุจุนุทูŠูƒูŠ ุงู„ tables ูŠุนู†ูŠ

140
00:14:42,020 --> 00:14:46,880
ุงู…ุชุญุงู† ุงู„ tables ุจุจุนุฏูŠูƒูŠู‡ู… ู„ูˆ ุชุทู„ุน ุนู„ู‰ ุงู„ example

141
00:14:46,880 --> 00:14:50,060
ุงู„ู„ูŠ ู‡ู†ุง P of Z less than 2

142
00:14:55,420 --> 00:14:58,440
ุงู„ู€ z is given suppose we are interested in this

143
00:14:58,440 --> 00:15:08,600
probability ุนู†ุฏ ุงู„ 2 ุจุงู„ุธุจุท ูŠุนู†ูŠ 2.0 under 0 2.0

144
00:15:08,600 --> 00:15:16,840
under 0 this

145
00:15:16,840 --> 00:15:24,140
is 2.0 go to the right just one placeุณุชุญุตู„ ุนู„ู‰

146
00:15:24,140 --> 00:15:32,280
9772 ุฅุฐุง ูุฅู† ุนุฏุฏ ุงู„ู€ z ุฃู‚ู„ ู…ู† 2 ูŠุนู†ูŠ 0.9772 ููŠ ุฃูŠ

147
00:15:32,280 --> 00:15:37,340
ุณุคุงู„ุŸ

148
00:15:37,340 --> 00:15:41,860
ุฅุฐุง

149
00:15:41,860 --> 00:15:50,210
ูุฅู†ูƒ ุชู„ู‚ู‰ ุนุฏุฏ ุงู„ z 2.0 ูˆ ุชุชุญุฑูƒ ุฅู„ู‰ ุฌู‡ุฉ ุฃุนู„ู‰ู„ุฃู†

150
00:15:50,210 --> 00:16:01,970
ู„ุฏูŠู†ุง ูู‚ุท 2.00 ูุนู†ุฏ 0 ู‡ู†ุง ู„ุฏูŠู†ุง 9 7 7 2 ุงู„ุขู†

151
00:16:01,970 --> 00:16:05,810
ูƒูŠู ูŠู…ูƒู†ู†ุง ุฃู† ู†ุฌุฏ ุนุงุฏู„ุงุช ุนุงุฏู„ุงุช ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

152
00:16:05,810 --> 00:16:06,970
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

153
00:16:06,970 --> 00:16:07,030
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

154
00:16:07,030 --> 00:16:09,090
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

155
00:16:09,090 --> 00:16:09,290
ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ ุนุงู…ุฉ

156
00:16:17,800 --> 00:16:20,660
ู‡ู†ุง ูŠูˆุฌุฏ ุฎุทูˆุงุช ุฃูƒุชุฑ ุซู„ุงุซุฉ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ

157
00:16:20,660 --> 00:16:21,500
ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ

158
00:16:21,500 --> 00:16:22,760
ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช

159
00:16:22,760 --> 00:16:26,780
ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช

160
00:16:26,780 --> 00:16:33,820
ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ

161
00:16:33,820 --> 00:16:35,580
ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช

162
00:16:35,580 --> 00:16:44,460
ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุทูˆุงุช ุฃูƒุชุฑ ุฎุท

163
00:17:01,860 --> 00:17:11,800
ุฏุนูˆู†ุง ู†ู‚ูˆู… ุจุงู„ุชุฑุฌู…ุฉ ุชุฑุฌู…ุฉ ุชุฑุฌู…ุฉ ุชุนู†ูŠ convert ุชุฑุฌู…ุฉ

164
00:17:11,800 --> 00:17:20,880
ุชุฑุฌู…ุฉ ุชุฑุฌู…ุฉ ุชุฑุฌู…ุฉ ุชุฑุฌู…ุฉ

165
00:17:20,880 --> 00:17:21,400
ุชุฑุฌู…ุฉ

166
00:17:24,140 --> 00:17:30,400
ูƒูŠู ูŠู…ูƒู†ู†ุง ุชุญูˆูŠู„ X ุฅู„ู‰ ZุŸ ุจุงุณุชุฎุฏุงู… ุงู„ูˆุงู‚ุน Z ูŠู‚ู„ X

167
00:17:30,400 --> 00:17:36,000
ู…ุงู†ูˆุณ ู…ูŠูˆ ุชู‚ุฑูŠุฑู‡ ุจุณูŠุฌู…ุง X ู…ุงู†ูˆุณ .. ู‡ุฐุง ูŠุนู†ูŠ ููŠ

168
00:17:36,000 --> 00:17:39,920
ุงู„ูˆุงู‚ุน X

169
00:17:39,920 --> 00:17:46,600
ู…ุงู†ูˆุณ .. ู…ูŠู† X ุชู‚ุฑูŠุฑู‡ ุจุณูŠุฌู…ุง X ูู‚ุท ู„ุชุนุฑูŠูุงุช ุจุณูŠุทุฉ

170
00:17:46,600 --> 00:17:49,040
ู†ุณุชุฎุฏู… X ู…ุงู†ูˆุณ ู…ูŠูˆ ุนู„ู‰ ุณูŠุฌู…ุง

171
00:17:54,500 --> 00:17:58,220
ุงู„ู‚ุงุนุฏุฉ ุงู„ุทุจูŠุนูŠุฉ ุงู„ุตู†ุฏูˆู‚ูŠุฉ ู„ุชุณุชุฎุฏู… ู‡ุฐู‡ ุงู„ู‚ุงุนุฏุฉุŒ

172
00:17:58,220 --> 00:18:02,960
ูู‡ู†ุง ูŠูˆุฌุฏ ุฃุณุงุณู‹ุง ุซู„ุงุซ ุฎุทูˆุท ู„ุชู‚ูˆู… ุจุชุญุฏูŠุซ ุฃูŠ ู…ุนุฑูˆู

173
00:18:02,960 --> 00:18:09,320
ุชุญุช ุงู„ู‚ูŠุงุฏุฉ ุงู„ุทุจูŠุนูŠุฉ. ุนู„ู‰ ุณุจูŠู„ ุงู„ู…ุซุงู„ุŒ ุงุนุชู‚ุฏ ุงู† X

174
00:18:09,320 --> 00:18:13,420
ู‡ูˆ ุงู„ูˆู‚ุช ุงู„ู„ุฐูŠ ูŠุณุชุบุฑู‚ ููŠ ุซุงู†ูˆูŠุฉ ู„ุชุญู…ูŠู„ ู…ู„ู ุตูˆุฑุฉ ู…ู†

175
00:18:13,420 --> 00:18:21,570
ุงู„ุฅู†ุชุฑู†ุช ูˆ X ู…ุซู„ ุงู„ุฒู…ู†ุงู„ูˆู‚ุช ู…ุณุชู…ุฑ ูˆู„ุง ู…ุณุชู…ุฑุŸ ู…ุณุชู…ุฑ

176
00:18:21,570 --> 00:18:26,410
ู„ุฃู†ู‡ ู„ุง ูŠู…ูƒู† ุฃู† ูŠุฃุฎุฐ ุฃูŠ ู‚ูŠู…ุฉ ู…ุธุจูˆุทุŸ ุงู„ูˆู‚ุช ูŠู…ูƒู† ุฃู†

177
00:18:26,410 --> 00:18:31,930
ูŠูƒูˆู† 3.6 3 3.5 ูˆู…ุง ุฅู„ู‰ ุฐู„ูƒ ุŒ ู„ุฐู„ูƒ ุงู„ูˆู‚ุช ูŠุนุชุจุฑ

178
00:18:31,930 --> 00:18:33,770
ู…ุณุชู…ุฑู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง

179
00:18:33,770 --> 00:18:37,310
ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง ู…ุฎุชู„ูู‹ุง

180
00:18:37,310 --> 00:18:44,690
ู…ุฎุชู„ูู‹ุง

181
00:18:44,690 --> 00:18:45,710
ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ

182
00:18:45,710 --> 00:18:46,090
ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ

183
00:18:46,090 --> 00:18:52,860
ู…ุฎุชู„ูุฉ ู…ุฎุชู„ูุฉ ู…ุฎุชof 18 seconds and

184
00:18:52,860 --> 00:18:57,820
standard deviation of 5 seconds and suppose we are

185
00:18:57,820 --> 00:19:03,700
interested in the probability of X less than 18.6

186
00:19:03,700 --> 00:19:07,560
seconds ูŠุนู†ูŠ ุจูŠุญูƒูŠ ุงู„ุฒู…ู† ุงู„ู„ูŠ ู„ุงุฒู… ุนุดุงู† ุชู†ุฒู„ image

187
00:19:07,560 --> 00:19:12,840
ู…ู† ุงู„ุงู†ุชุฑู†ุช ุจูŠุงุฎุฏ ููŠ ุงู„ู…ุชูˆุณุท mean 18 ุชุงู†ูŠุฉ ูˆ

188
00:19:12,840 --> 00:19:16,150
standard deviation 5ุจู†ูุชุฑุถ X ุงู„ู„ูŠ ู‡ูŠ normal

189
00:19:16,150 --> 00:19:20,650
distribution ุจูŠุณุฃู„ ุฅูŠุด ุงู„ probability ุฅูŠุด ุงู„

190
00:19:20,650 --> 00:19:25,690
chance ุฅูŠุด ุงู„ุงุญุชู…ุงู„ ุฃู† X ูŠุนู†ูŠ ุงู„ุฒู…ู† ุงู„ู„ูŠ ู„ุงุฒู… ูŠูƒูˆู†

191
00:19:25,690 --> 00:19:31,350
ุฃู‚ู„ ู…ู† 18.6 step

192
00:19:31,350 --> 00:19:37,590
one we have to draw first this is the normal curve

193
00:19:37,590 --> 00:19:44,580
the mean in the center the mean is 18ุงู„ุงู† ู†ุญู†

194
00:19:44,580 --> 00:19:51,760
ู…ู‡ุชู…ูŠู† ุจ 18.6 ุงุฐุง ุงุฐู‡ุจ ุงู„ู‰ ุงู„ูŠู…ูŠู† ู‡ุฐุง ู‡ูˆ ู‚ูŠู…ุฉ 18.6

195
00:19:51,760 --> 00:20:00,080
ูˆู†ุญู† ู†ุจุญุซ ุนู† ู‡ุฐู‡ ุงู„ู…ู†ุทู‚ุฉ ู‡ุฐู‡ ุงู„ูˆุงู‚ุนูŠุฉ ู„ุฐู„ูƒ ุงุฑุณู„

196
00:20:00,080 --> 00:20:06,440
ูู‚ุท ูƒูŠุฑุจ ุนุงุฏู„ ู…ุน ู…ุนู†ู‰ 18 ูˆู†ุญู† ู…ู‡ุชู…ูŠู† ุจู‡ุฐุง ู‚ูŠู…ุฉ X X

197
00:20:06,440 --> 00:20:12,360
ูˆุงุถุญ ุงู„ุงุตู…ู‡ุŸ ุงู„ู„ูŠ ู…ุฑุณูˆู… ุนู†ุฏูƒ ุฎู„ุงุตุŸ

198
00:20:14,090 --> 00:20:18,210
ู„ุฃู† ุงู„ area to the right of the mean ู‡ุฐูŠ area

199
00:20:18,210 --> 00:20:24,370
ุชุณุงูˆูŠ ู‚ุฏุงุด ู†ุตุŒ ุนู„ู‰ ุงู„ุดู…ุงู„ ู†ุตุŒ ู…ุธุจูˆุทุŸ ุชุชูˆู‚ุนูŠ ุงู„ุฌูˆุงุจ

200
00:20:24,370 --> 00:20:29,450
ู‡ูŠุทู„ุน ุฃูƒุจุฑ ู…ู† ู†ุต ูˆู„ุง ุฃู‚ู„ ู…ู† ู†ุตุŸ ุฃูƒุจุฑ ู…ู† ู†ุตุŒ ู„ูŠุดุŸ

201
00:20:29,450 --> 00:20:32,630
ู„ุฃู† ุฃู†ุง ุนุงูŠุฒ probability of X less than 18.6 it

202
00:20:32,630 --> 00:20:37,270
means this area ูƒู„ู‡ุง ุฒุงุฏ ู„ู„ุตุบูŠุฑุฉุŒ ูุจุงู„ุชุงู„ูŠ ุฃูƒูŠุฏ

203
00:20:37,270 --> 00:20:42,340
ุฃูƒุชุฑ ู…ู† ู†ุตุŒ ู„ูŠุด ุจุชูƒูˆู† ุฃู‚ู„ ู…ู† ู†ุตุŸู„ูˆ ูƒุงู†ุช ุนู„ู‰ ุงู„ุดู…ุงู„

204
00:20:42,340 --> 00:20:48,700
ุชูƒูˆู† ุชุญุช ู‡ู†ุง ุงูˆ ุงุฐุง ูƒุงู†ุช ุงูŠ ุงุชู†ุงุด ู…ุชุฑ ุงุฐุง ูƒุงู†ุช ุนู„ู‰

205
00:20:48,700 --> 00:20:53,140
ุงู„ูŠุณุงุฑ ู…ู† ุงู„ู…ูŠุงู† ูŠู…ูƒู† ุงู† ุชูƒูˆู† ุงู‚ู„ ู…ู† 0.5 ุนู„ู‰ ุงูŠ

206
00:20:53,140 --> 00:20:58,660
ุญุงู„ ู†ุญู† ู…ู‡ุชู…ูŠู† ุจุงู„ูุฑุตุฉ ุงู„ู…ูˆุฌูˆุฏุฉ ู‡ู†ุง ู„ุฐู„ูƒ ุฑู‚ู… ูˆุงุญุฏ

207
00:20:58,660 --> 00:21:03,420
ุงู†ุง ุงุฑุณู„ ูุฑุตุฉ ุงุชุฌุงุฑุจ ุงุชุฌุงุฑุจ ุนุงุฏูŠุฉ ุงุชุฌุงุฑุจ ุงุชุฌุงุฑุจ

208
00:21:03,420 --> 00:21:04,300
ุงุชุฌุงุฑุจ ุงุชุฌุงุฑุจ ุงุชุฌุงุฑุจ ุงุชุฌุงุฑุจ ุฒูŠ

209
00:21:10,800 --> 00:21:21,060
x is 18.6 minus the mean is 18 sigma 5 ุงูŠุด ุจูŠุณุงูˆูŠ

210
00:21:21,060 --> 00:21:26,660
0.6 over 5 which

211
00:21:26,660 --> 00:21:33,100
is 0.12 ู…ู…ูƒู† ุงุญุท ุนู„ู‰ ู†ูุณ ุงู„ curve ู„ูˆ ุจุฏุฃ ุงุญุท ุงู„

212
00:21:33,100 --> 00:21:38,220
curve ุชุจู‚ู‰ ุงู„ z ุทุจุนุง ุงู„ curve ู„ู„ z ูˆ ุงู„ x ุฒูŠ ุจุนุฏ

213
00:21:38,220 --> 00:21:45,680
ุจุณ ุงู„ scale ุจูŠุฎุชู„ูุงู„ู€ mean ุชุจู‚ู‰ ุฃุฒูŠุด ุจูŠุณุงูˆูŠ 0 ุงู„ู€

214
00:21:45,680 --> 00:21:53,680
18.6 ุฃุฒูŠุด ุตุงุฑุช 12 ู†ูุณ ุงู„ curve ุจุณ ุงู„ mean ุงู„ู„ูŠ ู‡ูŠ

215
00:21:53,680 --> 00:22:00,960
18 ุจุชุงุนุฉ ุงู„ normal distribution ููŠ ุงู„ Z ุตุงุฑุช 0 ูˆู‡ูŠ

216
00:22:00,960 --> 00:22:06,460
ุงู„ุณุฌู†ุฉ ูˆู‡ูŠ ุงู„ู„ูŠ 18.6 ุตุงุฑุช 0.12 ูุจุงู„ุชุงู„ูŠ ุฎู„ุตุช ู‡ูŠ ุงู„

217
00:22:06,460 --> 00:22:12,300
convertุฅุฐุง ุตุฑุช ุงู„ู…ุซู„ Probability of X less than 18

218
00:22:12,300 --> 00:22:18,240
.6 ู‡ุฐุง ู…ุทู„ูˆุจ ุจุงู„ุดูŠุฎ ุตุงุฑุช ุนุจุงุฑุฉ ุนู† ุฅูŠุด Probability

219
00:22:18,240 --> 00:22:26,640
of Z less than 0.12 step 3 ุนุจุงุฑุฉ ุนู† ุฅูŠุด use z

220
00:22:26,640 --> 00:22:30,520
table ุทู„ุน ุนู„ู‰ z table z positive ูˆู„ุง negative

221
00:22:30,520 --> 00:22:37,720
positive positive values

222
00:22:37,720 --> 00:22:38,280
of z

223
00:23:03,850 --> 00:23:09,750
ู…ุฑุฉ ุซุงู†ูŠุฉ ู„ุฏูŠ ุซู„ุงุซ ุฎุทูˆุงุช

224
00:23:13,110 --> 00:23:19,150
ุจุฑุณู… ุงู„ู‡ูŠุฆุฉ ุงู„ุทุจูŠุนูŠุฉ ูŠุฌุจ ุฃู† ุชุฌุฏ ู…ุตุฏุฑ ุงู„ู‡ูŠุฆุฉ ุงู„ุชูŠ

225
00:23:19,150 --> 00:23:26,850
ู‡ูŠ 18 ูˆู‚ูŠู…ุฉ X ู‡ู†ุง ู†ุญู† ู…ู‡ุชู…ูŠู† ุจุงู„ู€ 18.6 ุงู„ุฃู† 18.6

226
00:23:26,850 --> 00:23:31,390
ูŠุฌุจ ุฃู† ูŠูƒูˆู† ุนู„ู‰ ุฌุงู†ุจ ุงู„ู€ 18 ูู‡ุฐุง ู‡ูˆ X ุงู„ุฎุงุต ุจูŠ

227
00:23:31,390 --> 00:23:37,850
ุฎุทูˆุฉ 2 ุชุญูˆู„ X ุฅู„ู‰ Z ุจุงุณุชุฎุฏุงู… X ู…ุงู†ุณ ู…ูŠูˆ ุนุจุฑ ุณูŠุฌู…ุง

228
00:23:37,850 --> 00:23:42,550
ู„ุฐู„ูƒ ู†ุญู† ู„ุฏูŠู†ุง X ูŠูƒูˆู† 18.6 ู‡ุฐุง ุงู„ู‚ูŠู…ุฉ

229
00:23:46,410 --> 00:23:51,970
ู…ุน ุงู„ู…ู‚ุงูˆู…ุฉ ุงู„ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ 18 ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

230
00:23:51,970 --> 00:23:56,830
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

231
00:23:56,830 --> 00:23:58,290
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

232
00:23:58,290 --> 00:23:58,810
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

233
00:23:58,810 --> 00:23:59,350
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

234
00:23:59,350 --> 00:24:02,690
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

235
00:24:02,690 --> 00:24:08,190
ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ ู…ู‚ุงูˆู…ุฉ

236
00:24:08,190 --> 00:24:09,370
ู…

237
00:24:13,070 --> 00:24:15,410
Now what does this result meanุŸ ุฅูŠุด ู…ุนู†ู‰ ุงู„ุฌูˆุงุจ

238
00:24:15,410 --> 00:24:19,070
ุงู„ู„ูŠ ุทู„ุนุŸ ู‡ูˆ ุจูŠุณุฃู„ ุฅูŠุด ุงู„ time required to

239
00:24:19,070 --> 00:24:23,650
download an image from the internet if X is less

240
00:24:23,650 --> 00:24:26,790
than 18.6 seconds ูŠุนู†ูŠ ุฅูŠุด ุงุญุชุจุงู„ ุชู†ุฒู„ ุดุบู„ ุนู„ู‰

241
00:24:26,790 --> 00:24:31,990
ุงู„ุงู†ุชุฑู†ุช ุชุงุฎุฏ ู…ุนุงูƒ ุฒู…ู† ุฃู‚ู„ ู…ู† 18.6 second ุทู„ุน

242
00:24:31,990 --> 00:24:38,250
ุงู„ุฌูˆุงุจ 0.54 ูŠุนู†ูŠ ุชู‚ุฑูŠุจุง 54% ุงู„ูƒู„ุงู… ุฏู‡ ู…ู…ูƒู† ูŠุชุญู‚ู‚

243
00:24:38,250 --> 00:24:42,330
ู‡ู†ุฒู„ ุดุบู„ ุนู„ู‰ ุงู„ุงู†ุชุฑู†ุช ูˆ ุชุงุฎุฏ ู…ุนุงู‡ 18 ุซุงู†ูŠุฉ ูˆ 16

244
00:24:53,750 --> 00:25:01,070
now suppose we want to find normal upper tail ุฅูŠุด

245
00:25:01,070 --> 00:25:08,890
upper tailุŸ ุงู„ upper tail ุฅูŠุด ู…ุนู†ุงู‡ upper tailุŸ

246
00:25:08,890 --> 00:25:17,000
upper tail upper ุฅูŠุด ู…ุนู†ุงู‡ุงุŸ ุฃุนู„ู‰ ูˆ tailtail ู‡ูŠ

247
00:25:17,000 --> 00:25:24,400
ุนุฑุจ ูˆ ุงู†ุฌู„ูŠุฒุฉ ูˆุงุญุฏ ุนุฑุจ ูˆ ุงู†ุฌู„ูŠุฒุฉ ูˆุงุญุฏ tail ู…ุนุงูƒ

248
00:25:24,400 --> 00:25:28,880
ุฌูˆุงู„ุŸ ุญุทูŠู‡ ุนู„ู‰ ุงู„ dictionaryุŒ ุฅูŠุด ู…ุนู†ุงู‡ tailุŸ ุทุฑู

249
00:25:28,880 --> 00:25:34,980
ุฃูˆ dial ุทุฑู ูŠู…ูŠู†ุŒ ุทุฑู ุฃุนู„ู‰ upper tail ู…ุนู†ุงู‡ ุงู„ุทุฑู

250
00:25:34,980 --> 00:25:39,500
ุงู„ุฃุนู„ู‰ ูŠุนู†ูŠ ุนุงูŠุฒูŠ ุงู„ probability to the right side

251
00:25:39,500 --> 00:25:42,360
ูŠุนู†ูŠ ุงู„ุทุฑู ุงู„ู…ูˆุฌุจ

252
00:25:46,100 --> 00:25:49,000
ูŠุนู†ูŠ ุจุนุฏ ู…ุง ูƒู†ุช ุนุงูŠุฒุฉ probability of x less than

253
00:25:49,000 --> 00:25:55,920
18.6 ุนุงูŠุฒูŠู† ุงู„ probability of x greater than 18.6

254
00:25:55,920 --> 00:26:00,240
in

255
00:26:00,240 --> 00:26:06,160
stead of less than 18.6 to the left side we are

256
00:26:06,160 --> 00:26:08,840
looking for this probability for this area or for

257
00:26:08,840 --> 00:26:14,100
this probability the area to the right ู…ุณุงุญู„

258
00:26:14,100 --> 00:26:26,100
ุนู„ู‰ ุงู„ูŠู…ูŠู†ู„ู…ุง ุชูƒูˆู† ุฃูƒุจุฑ ุงู„ู…ุณุงุญุฉ

259
00:26:26,100 --> 00:26:31,560
ุชุญุช ู…ู†ุญู†ู‰ ุงู„ุชูˆุฒูŠุน ุทุจุนุง ุจุณู‡ุง ูˆุงุญุฏ ุฅุฐุง ุทู„ุนุช ู‡ูŠูƒ to

260
00:26:31,560 --> 00:26:39,460
the left 0.5478 ุฅูŠุด ู‡ุชูƒูˆู† ุนู„ู‰ ุงู„ูŠู…ูŠู† one minus

261
00:26:39,460 --> 00:26:46,710
this value ู…ุด ู‡ูŠูƒ ู…ุธุจูˆุท ุฅุฐุง ุญูƒูŠุชู„ูƒ ุงุญุชู…ุงู„ ุงู†ูƒุชุฎุณุฑ

262
00:26:46,710 --> 00:26:51,710
ุดุบู„ุฉ ู…ุนูŠู†ุฉ ุจุชู„ุงุชุฉ ู…ู† ุนุดุฑุฉ ุงุญุชู…ุงู„ ุงู„ุฑุจุญ ุณุจุนุฉ

263
00:26:51,710 --> 00:26:57,910
ูุงุญุชู…ุงู„ X ุฃู‚ู„ ู…ู† 18.6 ู‡ุฐุง ูŠุจู‚ู‰ one minus ุงุญุชู…ุงู„ X

264
00:26:57,910 --> 00:27:04,290
ุฃู‚ู„ ู…ู† 18.6 so always in general if we are looking

265
00:27:04,290 --> 00:27:08,450
for to the upper tail X greater than for example B

266
00:27:08,450 --> 00:27:16,450
this equals one minus X ุฃู‚ู„ ู…ู† Bุฎู„ุงุตุŒ ูŠุนู†ูŠ ู„ูˆ ุทู„ุน

267
00:27:16,450 --> 00:27:19,750
ุจุงุญุชู…ุงู„ X ุนู„ู‰ ุงู„ูŠู…ูŠู† ุทู„ุน ุนู„ู‰ ุงู„ุดู…ุงู„ ูˆ ุงุชุฑุญ ู…ู†ู‡ุง

268
00:27:19,750 --> 00:27:24,550
ูˆุงุญุฏ ูˆุงุถุญุฉ ููŠ ุฃูŠ .. ู„ูŠุด ู„ุฃ .. ู„ูŠุด ู„ุฃ ู„ุฃ ุงู„ู„ูŠ ุฃู†ุง

269
00:27:24,550 --> 00:27:29,210
ุจุญูƒูŠ ุงุญุชู…ุงู„ X ุฃูƒุจุฑ ู…ู† B ูˆุนุงูŠุฒ ุงู„ุดู…ุงู„ .. ุงู„ูŠู…ูŠู†

270
00:27:29,210 --> 00:27:34,410
ุจู‚ุฏุฑ ุฃุทู„ุน ุนู„ู‰ ุงู„ุดู…ุงู„

271
00:27:34,410 --> 00:27:38,390
ุทุจ ุงู„ุดู…ุงู„ ุงู„ู†ุญู„ ู‡ู†ุง ุงู„ู…ูƒู…ู„ ุฅูŠู‡ุŸ ุฅูŠุด ู‡ุชุณุงูˆูŠุŸ ูˆุงุญุฏ

272
00:27:38,390 --> 00:27:42,970
ู†ุงู‚ุต ุงู„ุดู…ุงู„ ุฃุญูุธูŠู‡ุง .. ูุงู…ูŠู‡ุง ุฒูŠ ู…ุง ุฃู†ุช ุนุงูŠุฒู‡ุง ู…ุด

273
00:27:42,970 --> 00:27:46,640
ู‡ู‚ุฏุฑ ุฃูˆุถุญู‡ุง ุฃูƒุชุฑ ู…ู† ู‡ู†ุงุฎู„ุงุต ุงุญุชู…ุงู„ x ุฃูƒุจุฑ ู…ู† b

274
00:27:46,640 --> 00:27:52,160
ุจูŠุณูˆุง one minus d of x ุฃู‚ู„ ู…ู† b ูŠุนู†ูŠ ููŠ ุงู„ู…ุซู„ ุงู„ู„ูŠ

275
00:27:52,160 --> 00:27:55,620
ุนู†ุฏู‰ probability of x greater than 18.6 equals

276
00:27:55,620 --> 00:28:04,320
ูˆุงุญุฏ minus five four seven eight point four five

277
00:28:04,320 --> 00:28:11,150
two two ู„ุญุธุฉ ู„ูˆ ุฌู…ุนุช ุงู„ู‚ูŠู…ุชูŠู† ู‡ุฏูˆู„ู„ูˆ ุฌู…ุนุช ุงู„ุงุชู†ูŠู†

278
00:28:11,150 --> 00:28:15,050
ุงูŠุด ู‡ูŠุณุงูˆุŸ ูˆุงุญุฏ ู„ุฃู† ุฒูŠ ู…ุง ุญูƒูŠุช ุงู„ area under the

279
00:28:15,050 --> 00:28:18,130
normal curve equals one ุงุฐุง ู†ุจุฏุฃ ุจุงู„ู†ุณุจุงู„ูŠ ุงู„

280
00:28:18,130 --> 00:28:22,510
upper tail ุงุฐุง ุนุฑูู†ุง ู…ู† ุดูˆูŠุฉ ุงู„ left tail ูˆู‡ูŠ ุงู„

281
00:28:22,510 --> 00:28:28,990
upper tailุŒ ุงูŠุด ุจุชุงู… ุนู†ุฏู‡ุŸ ุงู„ between finding

282
00:28:28,990 --> 00:28:35,850
normal probability between two values suppose

283
00:28:35,850 --> 00:28:42,110
X is normal with mean 18ูˆุงู„ุตุญูŠุญุฉ ุงู„ุฎุงู…ุณุฉ ุชุฌุฏ X ุจูŠู†

284
00:28:42,110 --> 00:28:47,230
18 ูˆ 18.6 ุนุงูŠุฒ ุงู„ Probability between two values

285
00:29:17,140 --> 00:29:22,620
ู…ูŠู†ูˆ 18 ุจูŠูƒุณ

286
00:29:22,620 --> 00:29:28,760
ุฃูƒุชุฑ ู…ู† 18 ูˆุฃู‚ู„ ู…ู† 18.6 ููŠ

287
00:29:28,760 --> 00:29:32,760
ู‡ุฐู‡ ุงู„ู…ู†ุทู‚ุฉ ุงู„ุขู†

288
00:29:32,760 --> 00:29:39,560
ุจุดูƒู„ ุนุงู… ุฅุฐุง ูƒุงู†ุช X ุจูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู†

289
00:29:39,560 --> 00:29:45,080
ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู†

290
00:29:45,080 --> 00:29:51,080
ุงุชูุงู‚ูŠู† ุงุชูุงู‚ูŠู†18 ูˆ18.6 ุงู„ุขู† ุงู„ุทุงุจู‚ ู…ุฑุฉ ุฃุฎุฑู‰ ูŠุนุทูŠ

291
00:29:51,080 --> 00:29:55,600
ุงู„ู…ู†ุทู‚ุฉ ู„ู„ุฌุงู†ุจ ุงู„ูŠุณุงุฑ ู„ุฐู„ูƒ ู„ูƒู…ุจูˆุช ุงู„ู…ู†ุทู‚ุฉ ุงู„ูŠุณุงุฑ

292
00:29:55,600 --> 00:30:02,820
ู…ุจุงุดุฑุฉ ุฃูƒุชุฑ ู…ู† 1 ู…ุงู†ูˆุณ ุงู„ุขู† ุณุจุจูˆุฒ ู†ุญู† ู…ู‡ุชู…ูŠู†

293
00:30:02,820 --> 00:30:07,480
ุจุงู„ุงู†ุชุตุงุฑ ุจูŠู† ุงุชุณุงุจู‚ูŠู† ุงุชุณุงุจู‚ูŠู† ุงู„ู…ุณุงุญุฉ ู‡ุฐู‡ ู…ุด

294
00:30:07,480 --> 00:30:13,440
ู‡ุชุณุงูˆูŠ ููŠ ุงู„ู†ุต ุงู„ู…ุณุงุญุฉ

295
00:30:13,440 --> 00:30:23,780
ู‡ุฐู‡ ุงู„ู…ุนู„ู…ุฉ ู‡ูŠูƒุจุชุณุงูˆูŠ ุงู„ุฃู‚ู„ ู…ู† 18.6 ุจุงู„ุธุจุท

296
00:30:23,780 --> 00:30:33,040
ุงู„ุฃู‚ู„ ู…ู† 18.6 minus X ุฃู‚ู„ ู…ู† 18 ูŠุนู†ูŠ

297
00:30:33,040 --> 00:30:39,160
ู…ุนู†ุงู‡ ูƒุฏู‡ ู„ู…ุง ุจุดุชุบู„ ุนู„ู‰ two values ุจุชุทู„ุน P of X

298
00:30:39,160 --> 00:30:42,900
less than ุงู„ูƒุจูŠุฑุฉ ุงู„ู„ูŠ ู‡ู†ุง ู†ุงู‚ุต P of X less than

299
00:30:42,900 --> 00:30:45,080
ุงู„ุตุบูŠุฑุฉ in general

300
00:30:48,860 --> 00:30:57,500
ู„ู€ X ุจูŠู† A ูˆB ุณูˆุงุก

301
00:30:57,500 --> 00:31:04,200
ูƒู†ุง ู…ู‡ุชู…ูŠู† ุจู‡ุฐู‡ ุงู„ูˆุงู‚ุนูŠุฉ ุฑู‚ู…

302
00:31:04,200 --> 00:31:12,360
ูˆุงุญุฏ ุจูŠ ู…ู† X ุฃู‚ู„ ู…ู† A ู‡ุฐุง ู…ุจุงุดุฑุฉ ู…ุจุงุดุฑุฉ ุชุญู„ูŠู‡ุง ุนู„ู‰

303
00:31:12,360 --> 00:31:14,220
ุทูˆู„ ู„ุฃู† ุงู„ูƒู„ุจุฉ ุชุนุทูŠ ุงู„ู…ู†ุทู‚ุฉ ุฅู„ู‰ ุงู„ูŠุณุงุฑ

304
00:31:17,210 --> 00:31:26,850
ุฅุฐุง ูƒุงู† X ุฃูƒุจุฑ ู…ู† B ูŠูƒูˆู† 1 ู†ุงู‚ุต ุฅู„ู‰ ุงู„ุชุงู„ุชุฉ ุฅุฐุง

305
00:31:26,850 --> 00:31:31,010
ูƒุงู† X ุจูŠู† A ูˆ B ุฃู‚ู„

306
00:31:31,010 --> 00:31:34,850
ู…ู† B ูŠูƒูˆู† 1 ู†ุงู‚ุต ุฅู„ู‰ ุงู„ุชุงู„ุชุฉ ู‡ุฐู‡ ู‡ูŠ ุงู„ู‚ูˆุงู†ูŠู†

307
00:31:34,850 --> 00:31:42,490
ุงู„ุซู„ุงุซุฉ ุงู„ู„ูŠ ู„ุฏูŠู†ุง ุฅุฐุง ุฃุฑุฏุช ุฅุญุชู…ุงู„ X ุจูŠู† A 18 ูˆ 18

308
00:31:42,490 --> 00:31:48,190
.6 ูŠุนู†ูŠ 18.6 minus X less than 18ู…ุน ูƒุฏู‡ ุงู„ู…ุซู„ ุตุงุฑุช

309
00:31:48,190 --> 00:31:51,990
ู…ุซู„ุชูŠู† ุงุชุญู„ู„ู‡ู…

310
00:31:51,990 --> 00:31:57,050
ูˆุงุญุฏุฉ ูˆุงุญุฏุฉ ุฎู„ุงุต ูƒุงู†ูˆุง ู…ุซู„ุชูŠู† ุงุญู„ู„ู‡ู… ูˆุงุฎุฏ ุงู„ูุฑู‚

311
00:31:57,050 --> 00:32:02,790
ุงู„ู„ูŠ ุจูŠู†ู‡ู… ูŠุนู†ูŠ ู…ุน ูƒุฏู‡ ู‡ุงุทู„ุน ุงู„ z score ู„ู„ุฃูˆู„ู‰ ุฒูŠ

312
00:32:02,790 --> 00:32:09,630
ู…ุง ุทู„ุนู†ุงู‡ุง ู…ู† ุดูˆูŠุฉ ุงู„ู„ูŠ ุณูˆุช ู‚ุฏุงุด 12% ูˆุทู„ุน ุงู„ z

313
00:32:09,630 --> 00:32:16,090
score ู„ู…ู†ุŸ ู„ู„ุชุงู†ูŠุฉุงู„ู„ูŠ ู‡ูŠ ุทุจูŠุนูŠุฉ ู‡ุชุณูˆู‰ ุตูุฑ ู…ุด

314
00:32:16,090 --> 00:32:20,910
ุฏุงูŠู…ุง ููŠ ู‡ุฐู‡ ุงู„ู…ุซู„ุฉ ุจุณ ู„ูŠุดุŸ ู„ุฃู†ู‡ ุนุงูŠุฒ X ุฃูˆ ุนุงูŠุฒ X

315
00:32:20,910 --> 00:32:25,670
ุฃูƒุจุฑ ู…ู† 18 ูˆ18 ูŠุนุจุฑ ุนู„ู…ูŠู† ู„ูƒู† ู„ูˆ ูƒุงู†ุช ู‚ูŠู…ุฉ ุชุงู†ูŠุฉ

316
00:32:25,670 --> 00:32:31,690
ุจุงุฎุฏู‡ุง ุงุนู…ู„ูŠู‡ุง ุฃูŠ 18 ุงู„ X ู…ุด ู‡ูŠูƒ ู†ู‚ุต ู…ู† 18 ุนู„ู‰

317
00:32:31,690 --> 00:32:43,140
Sigma 5 ุชุณูˆู‰ ุตูุฑ ุงู„ู…ุซู„ุฉ ุงุชุญูˆู„ุช ู„ุนูŠุด ุฃู‚ู„ ู…ู† 12ู†ู‚ุต

318
00:32:43,140 --> 00:32:51,680
ุฃู‚ู„ ู…ู† 0 ุงู„ู€ probability

319
00:32:51,680 --> 00:32:56,620
of z less than 0.12 ุทู„ุนู†ุงู‡ุง ู…ู† ุดูˆูŠุฉ ุงู„ุฌูˆุงุจ ุงู„ู„ูŠ

320
00:32:56,620 --> 00:33:03,560
ุทู„ุนุช ู…ุนุงูŠุง ุทู„ุนุช

321
00:33:03,560 --> 00:33:09,360
5478 5478

322
00:33:09,360 --> 00:33:12,140
P of z less than 0 ุฅูŠุด ุจุชุณูˆูŠุŸ

323
00:33:15,180 --> 00:33:21,640
ุงุญุชู…ุงู„ Z ุฃู‚ู„ ู…ู† 0 ุทุจ

324
00:33:21,640 --> 00:33:24,980
.. ุทุจ ุงุณู…ุน ุงุชุทู„ุน ุนู„ู‰ ุงู„ table ุฌุงู„ ู…ู† ุงู„ุฌูˆุง ูŠุนู†ูŠ

325
00:33:24,980 --> 00:33:31,760
ู‡ุงูŠ ุงู„ zero ุงูŠุด ุงู„ุฌูˆุง ุจุงู„ุณุงูˆูŠุฉ ูˆ ู…ู† ุบูŠุฑ ุงู„ table

326
00:33:31,760 --> 00:33:38,640
ุจุนุฑูู‡ ูˆู„ุง ุจุนุฑูู‡ุงุด ุจุนุฑูู‡ุง ุงู„ Z ู‡ุงูŠ ุงู„ Z ุงู„ mean

327
00:33:38,640 --> 00:33:43,860
ุจุงู„ู†ุต ุจุงู„ zero ุงู„ Z ุฃู‚ู„ ู…ู† Zero ู…ุณุงุญุฉ ู„ูŠู‡ ู…ุด

328
00:33:43,860 --> 00:33:49,690
ุจุงู„ุณุงูˆูŠุฉู†ุต .. ู…ู† ุบูŠุฑ ุงู„ุชุงุจุน .. ููุชุญ ุงู„ู†ุต .. ู‡ูŠ

329
00:33:49,690 --> 00:33:56,810
ุงู„ุฌูˆุงุจ ู†ุงุฎุฏ

330
00:33:56,810 --> 00:34:05,030
ู…ุฌู…ูˆุนุฉ ุฃุฎุฑู‰ ุซู… ู†ุชูˆู‚ู .. ูุงูƒุชุดู ู…ูุฑูˆุถ X ุจูŠู† 17.4 ูˆ

331
00:34:05,030 --> 00:34:05,390
18

332
00:34:16,340 --> 00:34:25,020
ุจุฏูŠ ุญุฏ ูŠุญู„ู‡ุง ูŠุง ุฏูŠุงุฌูŠ ูˆุงุญุฏุฉ ุชุชูุถู„ ุชุญู„ู‡ุง X between

333
00:34:25,020 --> 00:34:34,300
17.4 and 18 ุงู†ุช

334
00:34:34,300 --> 00:34:38,600
ู„ุงู† ู…ุนุงูƒ ุฎู…ูŠุณ ูˆ ุฌู…ุนุฉุŒ ู…ุธุจูˆุทุŸ ุญุงูˆู„ุŒ ููŠ ุฃุซุฑ ุนู„ู‰

335
00:34:38,600 --> 00:34:42,620
ุงู„ู…ูˆุถูˆุน ููŠ ุงู„ practice ุชุจุน chapter 6 ุญู„ ุงู„ุฃุซุฑ ุงู„ู„ูŠ

336
00:34:42,620 --> 00:34:43,840
.. ุงู„ู„ูŠ ุนู„ุงู‚ุฉ ุงู„ู…ูˆุถูˆุน ู‡ุฐุง

337
00:34:48,530 --> 00:35:03,630
ู‡ู„ู‚ูŠุชู‡ุง ู‡ู†ุนุชู…ุฏ ุฏู„ูˆู‚ุช ุนู„ู‰ ู‡ุฐุง ุงู„ุดูŠุก ุงุฐุง

338
00:35:03,630 --> 00:35:08,470
ูุตู„ุฉ ุงู„ุฃุชู†ูŠู† ูˆุงุญุฏุฉ ุงุญุชู…ุงู„ X ุฃู‚ู„ ู…ู† ุงู„ุชู…ู†ุชุงุดุฑ

339
00:35:08,470 --> 00:35:11,110
ุงู„ูƒุจูŠุฑุฉ ู†ู‚ุต ุงุญุชู…ุงู„ X ุฃู‚ู„ ู…ู† ุงู„ุตุบูŠุฑุฉ ูˆุงุถุญ ุงู„ุฎุทูˆุฉ

340
00:35:11,110 --> 00:35:14,550
ุงู„ุฃูˆู„ู‰ุŸ ู‡ู„ู‚ูŠุชู‡ุง ู‡ู†ุญูˆู„ ุงู„ู€ X ู„ุฒุงุฏุฉ

341
00:35:26,280 --> 00:35:33,900
ู…ุง ู‡ูŠ 18 ูŠุนู†ูŠ ุนุฏ ุฅูƒุณ ุจ 18 ุฅู„ู…ูŠู† ุจ 18 ุณูŠุฌู…ุง ุฎู…ุณุฉ

342
00:35:33,900 --> 00:35:38,100
ุงู„ู„ูŠ

343
00:35:38,100 --> 00:35:42,340
ุจุนุฏู‡ุง

344
00:35:42,340 --> 00:35:51,760
negative

345
00:35:51,760 --> 00:35:52,620
point twelve

346
00:36:15,490 --> 00:36:19,730
ูƒูˆูŠุณ ุฅุฐุง ุงู†ุตุงุฑ ุงุญุชู…ุงู„ z ุฃู‚ู„ ู…ู† zero ู†ู‚ุต ุงุญุชู…ุงู„ z

347
00:36:19,730 --> 00:36:24,890
ุฃู‚ู„ ู…ู† negative point twelve ูŠุณุงูˆูŠ z ุฃู‚ู„ ู…ู† zero

348
00:36:24,890 --> 00:36:33,000
ุดูˆูู†ุง ู…ุด minus ู†ู‚ุตู‡ุงูŠ ุงู„ schedule ู‡ุงูŠ

349
00:36:33,000 --> 00:36:42,520
ุงู„ negative four

350
00:36:42,520 --> 00:36:51,480
five five two ุงุชู†ูŠู†

351
00:36:51,480 --> 00:36:57,800
ุงุชู†ูŠู† ุงุฑุจุนุฉ ุงุฑุจุนุฉ ุงุฑุจุนุฉ ุณุจุนุฉ ุชู…ุงู†ูŠุฉ

352
00:37:06,620 --> 00:37:11,640
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

353
00:37:11,640 --> 00:37:11,860
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

354
00:37:11,860 --> 00:37:12,580
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

355
00:37:12,580 --> 00:37:16,520
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

356
00:37:16,520 --> 00:37:18,320
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

357
00:37:18,320 --> 00:37:19,600
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

358
00:37:19,600 --> 00:37:26,400
ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด ู…ุด

359
00:37:26,400 --> 00:37:30,110
ู…ุด ู…ุด ู…ุดุชุญูˆู„ุช ู„ู„ู€ z between zero and negative

360
00:37:30,110 --> 00:37:37,290
point twelve ุงุญุชู…ุงู„ z less than zero one half ูˆู‡ุฐุง

361
00:37:37,290 --> 00:37:43,950
ุทู„ุนุช ู…ู† ุงูŠู†ุŸ ู…ู† ุงู„ุฌุฏูˆู„ ุทู„ุน ุงู„ุฌูˆุงุจ ู‡ูŠูƒ ุงู„ู„ูŠ ุฃู†ุง ูˆ

362
00:37:43,950 --> 00:37:47,450
ุฃู†ุง ู…ุงุนุทูŠุชูƒูŠุด ุงู„ .. ุงู„ negative table ุงู„ุฌุฏูˆู„ ุชุจุน

363
00:37:47,450 --> 00:37:52,710
ุงู„ negative z values ู„ูˆ ุจุณ ุงู„ู…ูˆุฌุจ ู„ุญุธุฉ .. ุงู„ู…ุซู„ุฉ

364
00:37:52,710 --> 00:37:56,330
ุงู„ู„ูŠ ูุงุชุช ุงู„ู…ุซู„ุฉ

365
00:37:56,330 --> 00:38:06,410
ุงู„ู„ูŠ ูุงุชุชู„ูˆ ูƒู†ุง ุจู†ุฏูˆุฑ ุนู„ู‰ ุฒูŠุจ 12 ูƒุงู†ุช ุฅูŠู‡ ุงู„ู„ูŠ

366
00:38:06,410 --> 00:38:12,390
ุดู…ุงู„ุด ุจุชุณุงูˆูŠ ููŠ ุฃูˆู„ example ููŠ ุงู„ example ุงู„ุฃูˆู„

367
00:38:12,390 --> 00:38:22,210
ุฃูˆู„ ูˆุงุญุฏ ุงุด ุณูˆุช five four seven eight ู…ุธุจูˆุท ู‡ุฐุง ููŠ

368
00:38:22,210 --> 00:38:27,650
ุงู„ู†ุต five four seven eight ู…ุธุจูˆุท

369
00:38:33,220 --> 00:38:39,780
5478 ู…ุธุจูˆุท ู‡ูŠูƒ ุงู„ู„ูŠ ู‡ูŠ ุงู„ู…ู†ุทู‚ุฉ ุงู„ู„ูŠ ู‡ู†ุง 5478.112

370
00:38:39,780 --> 00:38:48,320
5478 ุงู„ู„ูŠ ุงู†ุง ู…ุด ุนุงูŠุฒู‡ Z less than negative 12

371
00:38:48,320 --> 00:38:54,380
ุงู„ุงู†

372
00:38:54,380 --> 00:39:00,170
to the left of Z 0.12 0.5478ุทูŠุจ ุนุงู„ูŠู…ูŠู† ุฅูŠุด

373
00:39:00,170 --> 00:39:04,110
ู‡ุชุณุงูˆูŠุŸ ุงู„ู…ู†ุทู‚ุฉ ุงู„ู„ูŠ ู‡ู†ุง ุงู„ู…ู†ุทู‚ุฉ ุงู„ู„ูŠ .. ู‡ุฐู‡

374
00:39:04,110 --> 00:39:10,530
ุงู„ุจูŠุถุฉ ูˆุงุญุฏ ู†ุงู‚ุต ุงู„ุฑู‚ู…ุŒ ู…ุธุจูˆุทุŸ ู…ุฑุฉ ุชุงู†ูŠุฉ ุงุญุชู…ุงู„ ุฒูŠ

375
00:39:10,530 --> 00:39:12,870
ุงู„ุฏู‚ุงู„ ู…ู† ุงู„ู‚ูŠู…ุฉ ุงู„ู„ูŠ ู‡ู†ุง ุงู„ุฌูˆุงุจ ุฎู…ุณุŒ ุฃุฑุจุนุฉุŒ ุณุจุนุฉุŒ

376
00:39:12,870 --> 00:39:17,870
ุชู…ุงู†ูŠุฉุŒ ุงู„ู„ูŠ ุนุงู„ูŠู…ูŠู† ูˆุงุญุฏ ู†ุงู‚ุตุŒ ุงู„ู„ูŠ ุจุชุณุงูˆูŠ ู‚ุฏุงุดุฑุŸ

377
00:39:17,870 --> 00:39:22,010
ุฃุฑุจุนุฉุŒ ุฎู…ุณุฉุŒ ุงุชู†ูŠู†ุŒ ุงุชู†ูŠู†ุŒ ู…ุด ู‡ูŠูƒุŸ ูŠุนู†ูŠ ุงุทู„ุนูˆุง

378
00:39:22,010 --> 00:39:24,010
ุงุญุชู…ุงู„ ุฒูŠ ุฃูƒุจุฑ ู…ู† twelve

379
00:39:29,050 --> 00:39:35,050
ุฃุฑุจุนุฉุŒ ุฎู…ุณุฉุŒ ุงุชู†ูŠู†ุŒ ุงุชู†ูŠู†ุŒ ู…ุด ู‡ูŠูƒุŸ ู‡ุฐุง ุงู„ุฃูƒุจุฑ ู…ู†

380
00:39:35,050 --> 00:39:42,590
point twelve ุทุจ ุฅูŠุด ุงู„ุนู„ุงู‚ุฉ ุงู„ู„ูŠ ุจูŠู†ู‡ู…ุŸ

381
00:39:42,590 --> 00:39:46,910
ุจุงู„ุธุจุท ู„ู…ุง

382
00:39:46,910 --> 00:39:52,410
ูŠูƒูˆู† ุฏูŠ point twelve ูˆู‡ูŠ ุงู„ area point fourุŒ five,

383
00:39:52,510 --> 00:39:56,790
two, two ูˆู‡ุฐู‡ negative point twelveุŒ ู‡ุฐูˆู„ ุชู†ุชูŠู†

384
00:39:56,790 --> 00:40:02,320
ู…ุงู„ู‡ู…ุŸุฒูŠ ู„ูŠุด ุฒูŠ ุจุนุถ because of symmetric

385
00:40:02,320 --> 00:40:07,720
distribution ู†ูุณ

386
00:40:07,720 --> 00:40:11,040
ุงู„ู‚ูŠู…ุฉ ุจุณ ูˆุงุญุฏุฉ positive ูˆุงุญุฏุฉ negative ูู‚ู„ุชู„ูŠ ุงู„

387
00:40:11,040 --> 00:40:16,180
area to the left of negative ุฃูƒูŠุฏ ุฒูŠ ุงู„ู„ูŠ ูุงุชุช ู…ู†

388
00:40:16,180 --> 00:40:22,500
ู‡ู†ุง ุจุทู„ู‚ ุงู„ table ุฃูˆุฑูŠูƒูŠ yet ูƒู…ุงู† example ุดูˆู

389
00:40:22,500 --> 00:40:25,040
ุงู†ุช ุดุทุฑุงุช ููŠู‡ ุฎู„ุต ุงู„ูˆุฌุงุช ุจุณ

390
00:40:27,450 --> 00:40:34,230
ุฅู„ุง ู„ูˆ .. ู„ูˆ ูˆุงุญุฏุฉ ุชุงู†ูŠุฉ ุงู„

391
00:40:34,230 --> 00:40:41,550
list ุฏู‡ negative 2.5 ู…ู† ุบูŠุฑ ุฌุฏูˆู„ุฉ ู„ูˆ ุงุทู„ุนุช ุนู„ู‰ 2.5

392
00:40:41,550 --> 00:40:47,330
ู‡ุงูŠ

393
00:40:47,330 --> 00:40:55,630
2.5 ุงู„ู…ุณุงุญุฉ ุฏู‡ left ุฅูŠุด ุณุงูˆุช 9938

394
00:40:55,630 --> 00:41:03,330
ู…ุธุจูˆุทู‡ุฐู‡ ุงู„ู…ุณุงุญุฉ ู‡ูŠ 9 9 3 8 ุงูŠุด ููŠ ุงู„ ุชู… ู‡ู†ุง ูˆุงุญุฏ

395
00:41:03,330 --> 00:41:12,690
ู†ุงู‚ุต 0062 ูุงู„ู…ุณุงุญุฉ ู‡ุฐู‡ ู†ูุณ ุงู„ู„ูŠ ู‡ู†ุง ู„ุฃ

396
00:41:12,690 --> 00:41:17,010
ู„ูˆ ุฑูˆุญุช ุนู„ู‰ ุงู„ negative ุงุชู†ูŠู† ูˆ ู†ุต ู‡ูŠ ุงุชู†ูŠู† ูˆ ู†ุต

397
00:41:17,010 --> 00:41:20,290
0062

398
00:41:20,290 --> 00:41:24,070
ูˆุงุถุญ ูŠุนู†ูŠ ู„ู…ุง ูŠูƒูˆู† ุทุงู„ุจ negative ุงุช ุงู„ positive

399
00:41:24,070 --> 00:41:32,610
ุชุจุนู‡ ุงู„ุชูˆ ุจุณ one minusุฅุฐุงู‹ ู‡ูŠ ุงู„ู‚ุงุนุฏุฉ ุงู„ุฑุงุจุนุฉ ุจูŠุจ

400
00:41:32,610 --> 00:41:40,370
ุฒูŠ less than ุจูŠุจ ุฃูˆ

401
00:41:40,370 --> 00:41:48,190
ุฎู„ูŠู‡ุง greater than ุจูŠุจ ุงู„ู…ุณุงุญุฉ ุงู„ู„ูŠ ู‡ู†ุง ุจุชุณุงูˆูŠ

402
00:41:48,190 --> 00:41:51,430
ุฎู„ุงุต

403
00:41:51,430 --> 00:41:59,050
ุงุญุชู…ุงู„ ุฒูŠ ุฃูƒุจุฑ ู…ู† ุจูŠุจ ู‡ูŠ ู†ูุณ ุฒูŠ ุฃู‚ู„ ู…ู† ุณู„ุจ ุจูŠุจู…ุฑุฉ

404
00:41:59,050 --> 00:42:05,170
ุชุงู†ูŠุฉ ู‡ุงูŠ ุงู„ูƒูŠุฑู… ูˆู‡ูŠ ุจูŠู‡ ูˆู‡ูŠ ุณุงู„ุจ ุจูŠู‡ ู†ูุณ ุงู„ู‚ูŠู…ุฉ

405
00:42:05,170 --> 00:42:10,730
ู‡ุฏูˆู„ ู…ุงู„ู‡ู… ู…ุชุณุงูˆูŠุฉ ุฎู„ุงุต next time ุงู† ุดุงุก ุงู„ู„ู‡

406
00:42:10,730 --> 00:42:11,110
continue