The expected value,E(X),of a binomial probability distribution with n trials and probability p of success is:
A) n + p
B) np(1 -p)
C) np
D) n + p - 1

Question

Quizplus · Accepted Answer

The formula for the expected value of a binomial distribution is E(X) = np. Therefore, the correct answer is C. The other options are incorrect formulas for the expected value of a binomial distribution.

The Expected Value,E(X),of a Binomial Probability Distribution with N Trials