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JEE MATHEMATICS MCQ: STATISTICS

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The sum of squares of deviations for 10 observations taken from mean 50 is 250 . The coefficient of variation is

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Correct option: A

10 \%

Option A (10%) is correct because it is the coefficient of variation calculated from the given data.

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If the mean of a set of observations

{x_1},{x_2}, \ldots ,{x_n}

\bar X,

then the mean of the observations

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the s.d. of the new set of observations will be