Mathematics · Statistics

The mean deviation from the mean of the 2n + 1 observations a, a + d, a + 2d, ..., a + 2nd is given by:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1n(n + 1)d23
2a + n(n + 1)d22
3n(n + 1)d22
4n(n + 1)|d|2n + 1✓

Correct answer

n(n + 1)|d|2n + 1

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The mean deviation from the mean of the 2n + 1 observations a, a + d, a + 2d, ..., a + 2nd is given by:

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The mean deviation from the mean of the 2n + 1 observations a, a + d, a + 2d, ..., a + 2nd is given by:

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