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JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

Mean deviation of the series

a, a+d, a+2 d, a+2 n d

from its mean is

View answer and explanation

Correct option: C

\frac{n(n+1) d}{(2 n+1)}

Option C (

\frac{{n(n+1) d}}{{(2 n+1)}}

) is correct because it accurately calculates the mean deviation of the given series from its mean.

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\bar X,

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