Question: 4. Let the joint probability mass function of discrete random variables X and Y be given by p(x, y) = 1 25(x2

4. Let the joint probability mass function of discrete random variables X and Y be given by p(x, y) =    1 25(x2 + y2 ) if x = 1, 2, y = 0, 1, 2 0 otherwise. Find P (X > Y ), P (X + Y ≤ 2), and P (X + Y = 2).

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