Ex 13.1, 9 - Chapter 13 Class 11 Statistics

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Ex 13.1, 9 - Find mean deviation about mean Income per day - Ex 13.1

part 2 - Ex 13.1, 9 - Ex 13.1 - Serial order wise - Chapter 13 Class 11 Statistics

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Ex 13.1, 9 Find the mean deviation about the mean for the data. 128 = 50 & 128 = 17900 Mean = ( _ _ )/ _ = 17900/50 = 358 Now, 128 = 50 128 | | = 7896 Mean deviation about mean = ( _ | | )/ _ = 7896/50 = 157.92

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