Question

If X has a poisson distribution and p(X=0)=1/3.Then find E(X)

Answer 1

Answer:

distribution has its mean equal to its variance. ... In general, if X is a Poisson distribution, then. P X = x. (. ) = λx e. −λ x! (x = 0, 1, 2, ...) and this is denoted ... 2, 3 2, 2 2, 1 3, 5 5, 3. 4, 3 4, 2 3 ...