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2 (?/2 ) ( ?+4 ?+4 2 /. Suppose X ,Y have pdf f(x,y) =_ 16 3 3 e 3 (18) 85 2 Suppose V

2 (?/2 ) ( ?+4 ?+4 2 /. Suppose X ,Y have pdf f(x,y) =_ 16 3 3 e 3 (18) 85 2 Suppose V = X + 2 Y and W = X - Y . Find 1. the joint pdf f vw (V,w) 2. E (V ), E (W) 3. Ec var(W)

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