Find the covariance of the random variables X and Y in Exercise 6.1.

Data from Exercise 6.1

A software program is designed to perform two tasks, A and B. Let X represent the number of IF-THEN statements in the code for task A and let Y represent the number of IF-THEN statements in the code for task B. The joint probability distribution p(x, y) for the two discrete random variables is given in the accompanying table.

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1 2 3 5 .050 .025 0 .025 1 .200 .050 0.300 2 .100 .100 .150