Xis a binomial random variable with n400 n 400 and p01 p

Question

x is a binomial random variable with n=400 n = 400 and p=0.1. p = 0.1. Use the normal approximation to binomial probabilities to find following:

P (X > 45) =

P(X is less than or equal to 32) =

P (34 is less than or equal to X and is less than or equal to 46)=