at just past 5 min you evaluate at t = o. in that evaluation you forget to raise (1 - p + p ) to the (n-1)th power. this doesn't change the answer since 1-p+p=1 and 1^(n-1) = 1. but I was thrown off by that mistake for a while.
@@mumbiabby9840 I was making same mistake. It's because you can't now just differentiate the stuff in brackets like the first derivative because now there are two t terms. So you need product rule (i.e. derivative of n(1-p+pe^t)^n-1 multiplied by pe^t add derivative of pe^t multiplied by n(1-p+pe^t)). The second term is np when t=0
thk u sooooooooooo much your a life saver rit nowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww@@euanritchie2047
Hey ma'am can u really read inverted text also? but seriously speaking all your videos about MGF's have made me understand them so easily : ) Thanks a lot!
These transparent blackboards or "Lightboards", really can give headaches to some people because every thing is reflected. Subconsciously some people notice that the teacher is writing with their other hand in the other direction, body language, eye-movement all is reflected. So they stand in front of a glass write normal, record it and then reflect the video. But it is easier to imagine that they are writing on a mirror, you look from the back, so you see their face and body in the "mirror image", and you see their handwriting normally. Using this imaginary trick i can suppress my Lighboard-headache.
I have a question regarding the second derivative of the mgf. Was the product rule used to the "np". I'm doing something wrong but I don't know what it is; please help
Certainly! "iid" stands for "independent and identically-distributed." Each observation is independent of the others, and they all have identical distributions. You will sometimes also hear this called a "random sample."
Wow! This was a huge help! Thank you for speaking about it very clearly
Thank you so so much for the clear and concise explanation. Couldn't have asked for a better video explaining mgf's in detail :)
Thank you so much, so thoroughly, clearly and patiently explained really great job! :)
This is one of the few videos with 0 dislikes.
at just past 5 min you evaluate at t = o. in that evaluation you forget to raise (1 - p + p ) to the (n-1)th power. this doesn't change the answer since 1-p+p=1 and 1^(n-1) = 1. but I was thrown off by that mistake for a while.
same dude
In the var derivative I am getting p^2 n^2- np^2 . Kindly show me where I am wrong .Prof.G
@@mumbiabby9840 I was making same mistake. It's because you can't now just differentiate the stuff in brackets like the first derivative because now there are two t terms. So you need product rule (i.e. derivative of n(1-p+pe^t)^n-1 multiplied by pe^t add derivative of pe^t multiplied by n(1-p+pe^t)). The second term is np when t=0
thk u sooooooooooo much your a life saver rit nowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww@@euanritchie2047
thk u for asking the doubt@@mumbiabby9840
Thanks all the time
I love you Christina💓
thanks a lot mam !!
Very good video, thank you so much. Have you done one where you explained if a sequence of X1,...,Xn is i.id what it implies ?
THANK YOU!!!!!!!!
Hey ma'am can u really read inverted text also? but seriously speaking all your videos about MGF's have made me understand them so easily : ) Thanks a lot!
I write normally on the surface in front of me and then the video recording software reflects it (so that it doesn't look backwards to the viewer) :)
These transparent blackboards or "Lightboards", really can give headaches to some people because every thing is reflected. Subconsciously some people notice that the teacher is writing with their other hand in the other direction, body language, eye-movement all is reflected. So they stand in front of a glass write normal, record it and then reflect the video. But it is easier to imagine that they are writing on a mirror, you look from the back, so you see their face and body in the "mirror image", and you see their handwriting normally. Using this imaginary trick i can suppress my Lighboard-headache.
very good!
can np(1-p) be similar to npq where q is 1-p?
Yes, some books use q instead of 1-p
I don't understand exactly at what point the expected value of sum xi ^2 turns into n^2p^2...
Subed
I have a question regarding the second derivative of the mgf. Was the product rule used to the "np". I'm doing something wrong but I don't know what it is; please help
Could you kindly explain what does iid means?
Certainly! "iid" stands for "independent and identically-distributed." Each observation is independent of the others, and they all have identical distributions. You will sometimes also hear this called a "random sample."
Well , !! I might sound crazy!! but You look so cute while you teach!
audio could be better