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questions attached 10. (8 points) Let p1, P2, p3 and p4 be positive real numbers such that pit p2 + p3 + 4 = 1.

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10. (8 points) Let p1, P2, p3 and p4 be positive real numbers such that pit p2 + p3 + 4 = 1. Let the joint probability mass function for X and Y be P1 x = 0, y = 0 fx, y (x, y) = P2 x = 0,y =1 P3 x= 1, y = 0 P4 *= 1,y =1 (a) Find the Cov[X, Y]. (b) for (P1, P2, P3, p4) = (2/6, 1/6, 1/6, 2/6) find the correlation, p

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