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2. Suppose Y = X2 + Z. X is independent of Z. Suppose Pr(X = 2.3) = Pr(X = 2.3) = 0.5. Calculate c0v(Y, X)

2. Suppose Y = X2 + Z. X is independent of Z. Suppose Pr(X = 2.3) = Pr(X = 2.3) = 0.5. Calculate c0v(Y, X) 3. X is a random variable with mean equal to 4.6 and variance 5.8. Calculate the variance of E (X |X)

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