What is the formula for mean deviation in Chapter 13 Statistics?

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What is the formula for mean deviation in Chapter 13 Statistics?

Ravindra Pindel 10th Jul, 2020

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Ravindra Pindel 10th Jul, 2020

The formula for mean deviation in Chapter 13 Statistics, depending on whether you're dealing with ungrouped or grouped data, is:
Ungrouped Data:
MD = 1n×∑|xi−x¯|;
Grouped Data:
MD = 1n×∑fi|xi−x¯|

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