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13. If x represents the mean of n observations x1, x2, …, xn, then value of
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13. If x represents the mean of n observations x1, x2, …, xn, then value of ... 13. If x represents the mean of n observations x1 then value of x+2 xn July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,