Suppose a Small Amount of Blood Is Sampled and the Number

True/False

Suppose a small amount of blood is sampled and the number of white blood cells are counted. If the number of white blood cells is Poisson distributed with λ = 6, what is the probability that the sample has more than 4 white blood cells? What is the average number of white blood cells per sample? Is $\operatorname { Pr } ( 4 \leq X ) = 0.7149 ; E ( X ) = 6$ correct?