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Stat 88 class - Shared screen with speaker view
Andrew Huang
04:13
yes
Harry Xia
04:14
yes
lauraherron
04:14
yes
Zachary Zhu
04:15
Yes
celine
04:15
mhm
Dennis Le
04:17
YEEE
Elle Yong
04:18
yes
chelsie
04:20
yes
Harry Xia
04:39
What’s Ib
Maggie Siu
04:40
yes
YeJin Ahn
04:49
yea
brendanco
06:16
yes
Sophie Liu
06:20
yes
Zachary Zhu
09:15
2
Jingyu Han
09:16
2?
lucy sandoe
10:41
when both are 1
lauraherron
11:27
so are A and B independent? Or does that not matter?
lauraherron
11:52
yes
Harry Xia
12:06
P(AB)
lucy sandoe
17:14
n by n
Harry Xia
17:17
n*n
michellecan
17:36
n
lucy sandoe
17:37
n diagonal
Matthew Lin
17:37
n
alexandriamarx
17:37
n
Zachary Hansen
17:38
n
Jingyu Han
17:38
n
Harry Xia
17:39
n
Zachary Zhu
17:54
n*(n-1)
lucy sandoe
17:55
n^2 - n
Jingyu Han
17:55
n^2 - n
Vasanth Kumar
17:55
n^2 -n
Joshua
18:29
What do you mean by “diagonal terms”?
ashley minooka
18:49
what is off-diagonal?
Joshua
19:06
Yeah that makes sense to me
ashley minooka
19:12
so..
ashley minooka
19:17
not in the center diagonal?
Michael navruzyan
22:52
why is that term n(n-1)?
alfredochavez
23:10
n^2 - n
Michael navruzyan
23:19
yep gotcha
alfredochavez
23:22
From the off diagonal
lucy sandoe
25:02
thanks uncle adam
lucyzhang
26:54
Sorry do u mind walking though one more time
lucyzhang
27:37
Okay! Thx !
lauraherron
29:20
39
brendanco
29:24
^
Andrew Huang
29:35
^
lucyzhang
30:25
Im good
lucyzhang
30:28
Thank you
lucyzhang
41:22
The math makes sense but Isn’t it the bigger the population or sample size the less the variation?
Dorkhan
41:29
And smaller SD means its more accurate?
lauraherron
41:58
yeah that’s what I thought too^
YeJin Ahn
43:50
In the previous page, what does it say in (less than...)?
Marisol Trejos
44:08
A
Zachary Zhu
44:09
A
carolinebrown
44:12
a
Devang Patel
44:16
a
Noah Wadhwani
44:21
A
lucy sandoe
46:23
b
Zachary Zhu
46:23
A
Kaci Gu
46:24
b
brendanco
46:25
b
Vasanth Kumar
46:26
A
Leslie Wasserman
46:26
a
YeJin Ahn
46:28
b
Grégoire
46:28
b
lauraherron
46:32
b
louisnorris
46:32
b
Leanna Chraghchian
46:33
b
Sophie Liu
46:33
b
ireneyoon
46:36
b
Noah Wadhwani
46:42
b
Joshua
46:44
b
isaacecheto
46:44
b
Harry Xia
46:47
B
Jingyu Han
46:48
b
Harry Xia
46:54
A
Michael navruzyan
48:45
why is it (1/2)^100 and (1/2)^400
Vasanth Kumar
49:28
First one had 100 coin tosses, second had 400 tosses
lucy sandoe
49:36
^ (1/2)^50*(1/2)^50 = (1/2)^100
Michael navruzyan
49:44
ah thanks!
Michael navruzyan
50:17
yes thanks
Harry Xia
52:06
B
lucy sandoe
52:16
b
Zachary Zhu
52:17
B
chelsie
52:19
b
Sophie Liu
52:20
b
Vasanth Kumar
52:20
B
micahgrim
52:22
B
ishika
52:24
b
celine
52:25
b
Joshua
52:52
b
Dorkhan
54:14
what does sigma mean again?
Joshua
54:19
SD
Kalia Rodich
54:22
What happened to the 1/n
Kalia Rodich
54:57
Thanks!
Joshua
55:44
How do we know sigma is 1/2?
Andrew Huang
56:00
thank you
Leslie Wasserman
56:04
thank you!
isaacecheto
56:04
Thank you
YeJin Ahn
56:04
i have a question
Kalia Rodich
56:05
Thank u professor Lucas !
Harry Xia
56:09
Thank you Uncle Lucas!
Jingyu Han
56:12
Thank you Uncle Adam!
alexandriamarx
56:19
thanks*!
Joshua
57:27
Thanks!
YeJin Ahn
01:03:40
Thank you professor!