Revisit Exercise 8.13. Find V[X|Y = 0] and V[X|Y = 1]. Find a general expression for V[X|Y]
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Data from Exercise 8.13
Let P(X = 0, Y = 0) = 0.1, P(X = 0, Y = 1) = 0.2, P(X = 1, Y = 0) = 0.3, and P(X = 1, Y = 1) = 0.4. Show that
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E[X\Y] = 12
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