8,9 I need help

Question 8 Determine the type of distribution for the following situation: Of all customers purchasing automatic garage door openers, 75% purchase a chain-driven model. LetX = the number among the next 15 purchasers who select the chain-driven model. a) O Hypergeometric b) O Poisson c) O Binomial d) O None of these Review Lat Question 9 Suppose two random variables, X and Y are independent, which statement is false? a) OP(Xn Y) = P(X) . P(Y) b) O Cou(X, Y) = 0 c) OP(X | Y) = P(X) d) OP(XUY) = P(X) + P(Y) e) O None of the above are false. Review Later