Suppose we are given that n is the number of trials of a random experiment, N is population size, M is the number of population units with the "success" characteristic, and p is the probability of success in the first trial. Under those circumstances, which of these expressions equals the mean of the hypergeometric random variable's probability distribution?
A) n
B) np
C) n(N/M)
D) n(M/N)

Question

Quizplus · Accepted Answer

The mean of the hypergeometric random variable's probability distribution is np.

Suppose We Are Given That N Is the Number of Trials