JEE MATHEMATICS MCQ: STATISTICS

1 Easy

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Analyzing +4 | -1

For the arithmetic progression

a,\left( {a + d} \right),\left( {a + 2d} \right),\left( {a + 3d} \right), \ldots \ldots ,\left( {a + 2nd} \right)

, the mean deviation from mean is

View answer and explanation

Correct option: B

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

Option B (

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

) is correct because the mean deviation from the mean for the given arithmetic progression is calculated to be this value.

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