The distribution whose mean is equal to its variance is the _________ distribution.
A)Binomial
B)Poisson
C)Hypergeometric
D)Continuous

Question

Quizplus · Accepted Answer

The Poisson distribution has its mean and variance equal to λ, where λ is the parameter that represents the average rate of occurrence of an event. Therefore, the Poisson distribution is the only one that satisfies the condition of having mean equal to variance.

The Distribution Whose Mean Is Equal to Its Variance Is