Kindly solve (B) in a step by step fashion.

3.63 Consider the binomial distribution with :1 trials and P(S) = p. 1 a Show that & = W for y = l,2,...,n. Equivalently, for y = My 1) 3m 1 1., 2, . . . , n, the equation 151(3)) : WM}: 1) gives a recursive relationship yq between the probabilities associated with successive 1values of Y. b If n = 90 and p = .04, use the above relationship to nd P(Y