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2) Suppose X1 and X2 are independently taken from some distribution function F in Rd with population mean and covariance . - Find E(Q) where

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2) Suppose X1 and X2 are independently taken from some distribution function F in Rd with population mean and covariance . - Find E(Q) where Q=(X1X2)A(X1X2) and A is a dd positive definite matrix of constants. - Find E(Q) when A=1 and =0

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