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JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

If

\sum\limits_{{i=1}}^{18}\left(x_i-8\right)=9

and

\sum\limits_{{i=1}}^{18}\left(x_i-8\right)^2=45

then the standard deviation of the observations

x_1, x_2, \ldots-x_{18}

is

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Correct option: C

3 / 2

Option C (3 / 2) is correct because the standard deviation is calculated using the given sums and the formula for standard deviation.

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