Ex 13.1, 9 - 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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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo