Question

What are the mean and standard deviation of a binomial probability distribution with `n=150` and `p=7/9`?

Answer 1

mean `=np`

standard deviation `=sqrt(npq)`

Explanation:

mean `=150xx7/9=350/3~~116.7`

standard deviation `=sqrt(150xx7/9xx(1-7/9))~~5.09`

hope that helped