Question

Given a binomial distribution with n = 8 and p = 0.40, what is the mean?

Answer 1

`E(X)=mu=3.2`

Explanation:

The mean (`mu`), or expected value (`E(X)`) for a binomial distribution `X~B(n,p)` is given by:
`E(X)=mu=np`

So, the mean is `np=8*0.4=3.2`