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Stat 88 class - Shared screen with speaker view
Adam Lucas
05:44
how is this online instruction thing working out for people?
candice
06:05
You’re doing a great job :)
Kevin Truong
06:07
Pretty good
Marisol Trejos
06:18
Alright
Christina Ji
06:21
Pretty ok!
Kaci Gu
06:51
Good
Adam Lucas
08:03
Is the warmup making sense?
Kaci Gu
09:03
yes
Claire McCallick
12:02
hi!
Rebecca Hu
12:05
yes
Sophie Liu
12:06
yes!
Kyra Terenzio
12:08
Yes
celine
12:10
yes
Kaci Gu
13:41
bernoulli
Rebecca Hu
13:43
Bernoulli
ashley minooka
13:44
bernoulli
Andrew Huang
13:44
bernoulli
brendanco
13:46
^
Sophie Liu
16:17
yes
Grégoire
16:19
yes
Jessica T Chau
16:19
yes
Zachary Zhu
16:20
Yes
Rebecca Hu
16:21
yes
Claire McCallick
16:21
good!
YeJin Ahn
16:21
yes
Andrew Huang
16:22
yes
brendanco
16:23
yup
Matthew Lin
16:25
yes
Maryam Pourshariati
16:26
yeah
VMoza
16:35
WOOOOOOOOOOOO
lucyzhang
20:49
U changed it to over 4 for prefecture notes
Chloe Guo-UC Berkeley-Econ&Data
21:17
Why is it 6?
lucyzhang
21:27
Shouldn’t it be 5
isaacecheto
21:50
Because “over 5” wouldn’t include 5
celine
21:53
he's doing both what he meant to ask and really asked
lucyzhang
22:01
If its over 4 it should be 5?
celine
22:18
he's doing "over 5"
lucyzhang
22:25
Oh okay u r doing over 5 instead of over 4
celine
22:30
yes
carinamassana
23:48
Can you explain how you got k one more time
louisnorris
23:57
+1
celine
24:20
why are u doing 1/k^2 as opposed to sig^2/c^2 ?
Jooee Karwande
24:30
^^
Rebecca Hu
25:55
Should we always calculate both Markov and chevyshev if possible and compare to see which is better?
Marisol Trejos
26:10
^^^
celine
26:15
ok then howd u get the k value
celine
26:21
can u pls go over that one more time
Noah Wadhwani
26:45
Professor Lucas do you have any pets?
celine
26:51
ahahahahah
celine
27:08
thank u
ashley minooka
28:13
what is a
Andrew Huang
28:17
^
candice
28:19
that’s q
celine
28:21
that's q
Stephen Nguyen
28:28
that’s q
ashley minooka
28:29
ohhhh
ashley minooka
28:35
fail, thank u
Michael navruzyan
28:59
that's q
mike
31:19
whats the a value again?
Jooee Karwande
31:22
I am stuck
Joshua
31:23
I’m stuck
celine
31:27
q, not a
Kaci Gu
32:36
1/q
Sophie Liu
32:39
method of indicators?
mike
32:42
use indicators
Michael navruzyan
32:44
6 * e(x1)
Kaci Gu
33:02
1/p*
VMoza
33:24
memoryless, so use 10 * e[x1], where e[x1] = 1/p
mike
34:39
I see each of those independent x values as indicators
lucyzhang
35:47
How does this apply to the fomula
Chloe Guo-UC Berkeley-Econ&Data
35:48
when solving these problems, do we always calculate var first and then drive SD from there, or can we go direcltly for sd
Jooee Karwande
35:59
what are the numbers in the fraction
aaronwu
36:25
How do you calculate p and q
lucyzhang
36:28
How does this apply to the fomula : square root of q over p
carinamassana
36:36
Why did you multiply 10 by q/p^2
Chloe Guo-UC Berkeley-Econ&Data
36:41
Yes thanks!!
Claire McCallick
37:11
"Why did you multiply 10 by q/p^2" - same question
Jooee Karwande
37:11
Thank you!
aaronwu
37:30
thx
Kyra Terenzio
37:43
can you please go over again why you found x1 and x2 independently until the third success?
lucyzhang
38:01
yup
lucyzhang
38:06
Thank you
Noah Wadhwani
38:10
You’re simply squaring sqrt(q)/p and because there are 10 independent trials you multiply by 10
Kyra Terenzio
39:27
Yes, I understand the independence
mike
39:32
would using the SD equation not get the same result?
Kyra Terenzio
39:35
Because of the die
lsandoe
43:15
E(x) = 50 not 10, right?
Zachary Zhu
43:30
Answer is no
lsandoe
43:32
I think the answer is no
Zachary Zhu
43:56
We know that np = 50, sqrt(npc) = 10
Zachary Zhu
43:59
npq*
Zachary Zhu
44:08
And then you realize that q gives you a value above 1
Zachary Zhu
44:10
Which isn’t possible
candice
46:26
Is it ok to write q in terms of 1-p and solve for n?
candice
46:54
I got n = -50 which tells me it would not be possible for the random variable to be binomial
brendanco
47:33
Restart the app
alfredochavez
48:31
Just in the mean time is there any notice for a webcast to view later?
Joshua
49:09
Nw Prof Lucas!
VMoza
49:25
we love you professor
lsandoe
50:01
for fun: https://calfalcons.berkeley.edu/webcams/?fbclid=IwAR1o9BlSq37EoUayDwesNG5g0-0QNCAr7Xz_ngxa0hyyHhFj3AIl2r_-mkY
brendanco
53:34
https://www.mercurynews.com/2020/03/16/coronavirus-six-bay-area-counties-to-shelter-in-place/
Joshua
54:43
Do any of you guys know if Berkeley is going to move towards reduced course load or not?
Adam Lucas
55:28
can you hear me
lsandoe
55:28
I think ASUC is petitioning for extending p/np to major classes
lsandoe
55:35
no
Maryam Pourshariati
55:38
no
michellecan
56:05
no
Joshua
56:15
No
Claire McCallick
56:24
adam - go to the chat page and click on your mute button in the top right corner
Claire McCallick
56:40
yes
Kaci Gu
56:41
yes
Marisol Trejos
56:41
yes
Joshua
56:41
yep
ashley minooka
56:42
hello!
isaacecheto
56:43
yep
Chloe Guo-UC Berkeley-Econ&Data
57:51
is this 7.2
Chloe Guo-UC Berkeley-Econ&Data
57:54
What is it called
ashley minooka
58:26
:c
Joshua
58:29
:(
ashley minooka
58:42
thank u prof
Marisol Trejos
58:43
Bye :(
Jessie
58:44
thank you!!
brendanco
58:47
Your pencil might be dead
Joshua
58:47
Thanks Prof Lucas!
isaacecheto
58:48
Have a good day prof
Claire McCallick
58:50
take care
Maryam Pourshariati
58:50
thank you
rob
58:50
thanks!
Kimberly Shen
58:52
Thank you!
Michael navruzyan
59:02
can you go back up to the warm up question plz?
Chloe Guo-UC Berkeley-Econ&Data
59:03
can we go over the warm uop one more time pls
Michael navruzyan
01:02:35
thank you prof
mike
01:05:30
I'm good Ill see you Wednesday!
Chloe Guo-UC Berkeley-Econ&Data
01:05:40
Thank u!!