Ex 15.1, 5
Find the mean deviation about the mean for the data.
First we will calculate mean
Mean deviation about mean = ( 128 | | )/( 128 )
Putting 128 | | = 158 , 128 = 25
M.D. ( ) = 1/25 158
= 6.32
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.