An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. y P(x, y) 10 15 0.03 0.06 0.02 0.10 5 0.04 0.14 0.20 0.10 10 0.01 0.15 0.14 0.01 (a) Compute the covariance for X and Y. (Round your answer to two decimal places.) Cov(X, Y) - -2.75 (b) Compute p for X and Y. (Round your answer to two decimal places.)

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