The Variance of a Binomial Random Variable X with N

Multiple Choice

The variance of a binomial random variable X with n trials and p probability of success, where p is greater than 0,

A) will always be less than the expected value of X.
B) will always be equal to the expected value of X.
C) will always be greater than the expected value of X.
D) may be less than, equal to, or greater than the expected value of X.
E) has no relationship to the expected value of X.