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Suppose X takes on the values −2,−1, 0, 1, 2 with probability 1/5 each, and let Y=X2. (a) Find cov(X,Y). (b) Are X and Y independent?

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  • Suppose X takes on the values −2,−1, 0, 1, 2 with probability 1/5 each, and let Y=X2. (a) Find cov(X,Y). (b) Are X and Y independent?


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