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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 deviatioin of

x_1, x_2 \ldots \ldots x_{18}

is

View answer and explanation

Correct option: C

\frac{3}{2}

Option C (

\frac{3}{2}

) is correct because it is the standard deviation calculated using the given summation formulas and the properties of variance.

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