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2. Let X~X I X2 X1 ~Gamma(X1, A). Find the expressions in terms of v and A for: (a) E(X2). (b) Var(X2) (c) Cov(X1,

2. Let X~X I X2 X1 ~Gamma(X1, A). Find the expressions in terms of v and A for: (a) E(X2). (b) Var(X2) (c) Cov(X1, X2)

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