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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

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Application +4 | -1

If the

\mathrm{S}.\mathrm{D}.

of a variate

X

is

\sigma

, then the

\mathrm{S}.\mathrm{D}.

of

a\;X + b

is

View answer and explanation

Correct option: A

\left| a \right|\;\;\sigma

Option A (

\left| a \right|\;\sigma

) is correct because the standard deviation of aX + b is the absolute value of a times the standard deviation of X.

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