Question: 2) Consider two random variables, X and Y. Suppose E(X) = 6, var(X) = 9, E(Y) = 0, var(Y) = 4, and com(X, Y) =

2) Consider two random variables, X and Y. Suppose E(X) = 6, var(X) = 9, E(Y) = 0, var(Y) = 4, and com(X, Y) = 0.25. Find the following, showing all your steps: (a) var(X + Y) (b) cov(X, X + 2Y) (c) cor(X + Y, X- Y)

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