# Math Help - probability distribution

1. ## probability distribution

Given X is a binomial random variable with a mean of 4 and a variance of 4/3 .
Show that the maximum value of X is 6

2. A binomial distribution with parameters n and p has mean np and variance np(1-p). This gives you 2 simultaneous equations for n and p. Once you have them, there should be no problem with the maximum value.