Let (X1, X2, . . . , Xn) denote a sample of size n. Show that nX2 = 1 n _ #n k=1 Xk _2
Chapter 12, Problem 12(choose chapter or problem)
Let (X1, X2, . . . , Xn) denote a sample of size n. Show that nX2 = 1 n _ #n k=1 Xk _2 where X is the sample mean.
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