9. Binomial random variable Suppose a 80% free throw shooter is given 20 free throws during a game. Let X represent the number of points this player makes from free throws. a) Find P(15X16) b) Find P(x19) c) Find the expected value and the variance 2 of the random variable X. d) (Bonus-3pts.) What does Chebyshev's Theorem say about the probability P(X16A)