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1. Let X1, ..., X, be independent random variables with IE[X,;] = 6 and Var[X,;] = a2 2', 2' = 1, ..., n. Find the

1. Let X1, ..., X", be independent random variables with IE[X,;] = 6 and Var[X,;] = a2 2', 2' = 1, ..., n. Find the linear unbiased estimator of 9 With minimum variance, and an unbiased estimate of 02. Explain your

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