The mean deviation from the mean for the set of observations – 1, 0, 4 is

less than 3

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less than 1

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greater than 2.5

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greater than 4.9

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Solution

The correct option is A
less than 3

$¯ x = \frac{- 1 + 0 + 4}{3} = 1. ∴ Mean Deviation = \frac{1}{3} [| - 1 - 1 | + | 0 - 1 | + | 4 - 1 |] = 2$

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The mean deviation from the mean for the set of observations – 1, 0, 4 is

The correct option is A less than 3 ¯x=−1+0+43=1.∴ Mean Deviation=13[|−1−1|+|0−1|+|4−1|]=2

The correct option is A
less than 3

$¯ x = \frac{- 1 + 0 + 4}{3} = 1. ∴ Mean Deviation = \frac{1}{3} [| - 1 - 1 | + | 0 - 1 | + | 4 - 1 |] = 2$