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4. Let X1, X2, ...; Xso be a random sample of size n = 50 from an No(u, E) population. Find out the following distributions.

4. Let X1, X2, ...; Xso be a random sample of size n = 50 from an No(u, E) population. Find out the following distributions. (a) The distribution of (X6 - #)'E '(X6 -/) (b) The distribution of X and Vn(X - /) (c) The distribution of (n - 1)S

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