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Question 13 If ¯x represents the mean of n observations x1,x2,……xn, then value of ∑ni−1(xi−¯x) is: A) -1 B) 0 C) 1 D) n - 1 |
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Answer» Question 13 If ¯x represents the mean of n observations x1,x2,……xn, then value of ∑ni−1(xi−¯x) is: A) -1 B) 0 C) 1 D) n - 1 |
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