Solution Found!
To find the variance of a hypergeometric random variable in Example 2.3-4 we used the
Chapter 2, Problem 2.3-10(choose chapter or problem)
QUESTION:
To find the variance of a hypergeometric random variable in Example 2.3-4 we used the fact that E[X(X 1)] = N1(N1 1)(n)(n 1) N(N 1) . Prove this result by making the change of variables k = x 2 and noting that N n = N(N 1) n(n 1) N 2 n 2
Questions & Answers
QUESTION:
To find the variance of a hypergeometric random variable in Example 2.3-4 we used the fact that E[X(X 1)] = N1(N1 1)(n)(n 1) N(N 1) . Prove this result by making the change of variables k = x 2 and noting that N n = N(N 1) n(n 1) N 2 n 2
ANSWER:Step 1 of 4
Given that,
To find the variance of hypergeometric random variable in Example 2.3-4 we used the fact that
It is required to prove this result by making the change of variables 
