5. Suppose X and Y are random variables with E(X) = 15, var(X) = 4, E(Y) = 25, var(Y) = 3 What are the expected value an
Posted: Thu Jan 13, 2022 5:47 am
5. Suppose X and Y are random variables with E(X) = 15, var(X) = 4, E(Y) = 25, var(Y) = 3 What are the expected value and variance of the random variable X + Y? a E(X + Y) = 20, var(X + Y) = 7 b. E(X + Y) = 40, var(X + Y) = 3.5 c. E(X + Y) = 40, var(X + Y) = 5 d. E(X + Y) = 40, var(X + Y) = 7 e. There is insufficient information to answer this