Question: Suppose X takes on the values2, 1, 0, 1, 2 with probability 1/5 each, and let Y = X 2 . (a) Find cov (X,

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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