Question: 8.7.3 Let X, Y be continuous random variables with a joint density f . Assume that E(Y IX = x) = p for all 2.

8.7.3 Let X, Y be continuous random variables with a joint density f . Assume that E(Y IX = x) = p for all 2. Show that Var(Y) = .I Var(Y1X = z ) fx(x) dx.

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