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JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

If the variance of 1,2,3,4,5,…,10 is

\frac{{99}}{{12}}

, then the standard derivation of 3,6,9,12,…., 30 is

View answer and explanation

Correct option: B

\frac{3}{2}\sqrt {33}

Option B (

\frac{3}{2}\sqrt {33}

) is correct because the standard deviation of the new series is 3 times the standard deviation of the original series.

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\bar X,

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