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Please explain clearly. Thanks Problem 5. Let X and Y be jointly distributed with joint PDF f(x, y) = 7 (x2 + xy) if x,

Please explain clearly. Thanks

Problem 5. Let X and Y be jointly distributed with joint PDF f(x, y) = 7 (x2 + xy) if x, y e [0, 1], 0 otherwise (a) Find E(X). (b) Find Var(X)

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