The expected value for a binomial probability distribution is _____.
A) E(x) = pn(1 − n)
B) E(x) = p(1 − p)
C) E(x) = np
D) E(x) = np(1 − p)

Question

Quizplus · Accepted Answer

The expected value for a binomial probability distribution is given by E(x) = np, where n is the number of trials and p is the probability of success for each trial. Option A is incorrect as it has an incorrect formula. Option B is the variance formula. Option D is incorrect as it includes (1-p) which is not required for the expected value. Therefore, the correct answer is C.

The Expected Value for a Binomial Probability Distribution Is _____