Question: 8. Let the joint probability mass function of discrete random variables X and Y be given by p(x, y) = 1 25(x2

8. 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, y) = (1, 1), (1, 3), (2, 3) 0 otherwise.

Find Cov(X, Y ).

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