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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

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Application +4 | -1

If the values

1, \frac{1}{2}, \frac{1}{3}, \frac{1}{4}, \frac{1}{5}, \ldots, \frac{1}{n}

occur at frequencies

1,2,3,4,5, \ldots, n

, in a distribution, then the mean is

View answer and explanation

Correct option: D

\frac{2}{n+1}

Option D (

\frac{2}{n+1}

) is correct because it is the result of calculating the weighted mean of the given values and frequencies.

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\bar X,

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