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Suppose that the following is true for random variables X and Y. E(X)=0, E(Y)=1, V(X)=9, V(Y)=16, xy = 0.5. Find E(3X + 2Y) Find E(5X

Suppose that the following is true for random variables X and Y. E(X)=0, E(Y)=1, V(X)=9, V(Y)=16,_xy = 0.5.

Find E(3X + 2Y)
Find E(5X + 3Y + 4X² + 3Y²)
Find V(3X + 2Y)
Let W = 4X+5 and Z = 7Y-3. Find V(2W+Z)

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