Suppose a Poisson Probability Distribution with ? = 0 $\sqrt { 0.8 }$

Multiple Choice

Suppose a Poisson probability distribution with ? = 0.8 provides a good approximation of the distribution of a random variable x.. Find ? for x.

A) 0.8
B) $\sqrt { 0.8 }$
C) 0.4
D) 0.64