The equation for the variance of the binomial distribution is given by:
A)px(1 - p)n-x
B)np
C)np(1 - p)
D) $\sqrt { n p ( 1 - p ) }$

Question

Quizplus · Accepted Answer

The variance of the binomial distribution is np(1-p), where n is the number of trials and p is the probability of success on each trial. None of the other choices are correct. A is the equation for the probability mass function of the binomial distribution, B is the mean of the binomial distribution, and D is the formula for the standard deviation of the binomial distribution.

The Equation for the Variance of the Binomial Distribution Is np(1−p)\sqrt { n p ( 1 - p ) }np(1−p)​

The Equation for the Variance of the Binomial Distribution Is $\sqrt { n p ( 1 - p ) }$