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P Suppose that Y ~ N (M. _) where A = and = WEN Given: A = 5.1 Find E (YAY) . 5.2 Find var

P Suppose that Y ~ N (M. _) where A = and = WEN Given: A = 5.1 Find E (YAY) . 5.2 Find var (Y'AY) . 5.3 Does YAY have a chi-square distribution? Explain your answer. YAY 5.4 If ) = -I, does have a chi-square distribution? Explain your

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