Probability and distribution

V v 2 v 3 Let X be a random variable with the following probab Value x of X P( X=x) 0.45 0.15 0.05 0.30 0.05 Complete the following. (If necessary, consult a list o (a) Find the expectation E (X) of X. E(X) = (b) Find the variance Var(X) of X. Var (x) = [ Check