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Calculate mean deviation from made for the following data. 10, 12, 15, 18,20, 15, 16, 13, 15

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Calculate mean deviation from made for the following data. 10, 12, 15, 18,20, 15, 16, 13, 15

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Here made (Z) = Size of (lie most repeated item’ Z=15; n = 9

Σ |X – Z| = 19

MD(z) = (19/9) = 2.11

C.M.D = (2.11/15) = 0.1406

Note : In practice means deviation will be calculated form median.

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