Why in some references they indicate n (N1/N) as expected value formula for hypergeometric distribution and others indicate n(k/N) expected value formula, how we choose between them?
I still can't understand the formula. How come the Cn(N,n) value can be the "total" number of possible outcomes for an extraction of n b-w (black white, chemists/physicists ) COLOURED items out of N possibile items ? It is just a number that represents how we can choose n items from N items .. no matter their "colour"is I don't understand how Cn(N,n) can be representative of ALL POSSIBLE CASES .. if it does not contain any information about the colour. EDIT: I got it.. items are all distinguishable inside their category. So that Cn(N, n) represent the number counting all the way n elements can be picked out from N elements, because they are all unique. It would be wrong if - for each group of success or failure - we had indistinguishable elements.
Incredible explanation! You are one of the few professional videos that I ever watched!
Sheldon cooper??
For real
credit to Dr. Kash Barker for explaining this concept with such clarity
Very well done it took a little while to sink in but now understand, Thanks very much..
Great explanation! Greetings from Germany
Thank you, you helped a lot! Cheers from Paris
Nice explanation! I would just suggest see expected value as 3/9 * 5 (prob of chemist times iterations).
Great content!
Why in some references they indicate
n (N1/N) as expected value formula for hypergeometric distribution and others indicate n(k/N) expected value formula, how we choose between them?
Enjoy your time in Vegas.
I still can't understand the formula.
How come the Cn(N,n) value can be the "total" number of possible outcomes for an extraction of n b-w (black white, chemists/physicists ) COLOURED items out of N possibile items ?
It is just a number that represents how we can choose n items from N items .. no matter their "colour"is
I don't understand how Cn(N,n) can be representative of ALL POSSIBLE CASES .. if it does not contain any information about the colour.
EDIT: I got it.. items are all distinguishable inside their category.
So that Cn(N, n) represent the number counting all the way n elements can be picked out from N elements, because they are all unique.
It would be wrong if - for each group of success or failure - we had indistinguishable elements.
Thanks for this clear explanation
thank youuuu,cheers from egypt
Well done.
You should point out that Chemists and Physicists are distinguishable. It is not obvious at all.
I think 5:00 should say 6 physicists, not 9
It’s a slip of tongue. He already stressed it’s 6 physicists throughout the video.
thank you
Nice
nice video cheers from 武汉科技大学黄家湖校区南三舍105寝
great
From Department of Physex!
thankssssssssssssssssssss
Good video but smile is for free
gives me motion sickness. presentation is wiggly
I love the presentation but the wiggling it's distracting.
Thank you