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2. There are two random variables X and Y. We know the following information: = 120 Var (2X + Y): Var (X2Y) = 240

 

2. There are two random variables X and Y. We know the following information: = 120 Var (2X + Y): Var (X2Y) = 240 Var (X) - Var(Y) = 20 (a) Compute Var(X). (b) Compute px,y = corr(X, Y).

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