
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Last updated at May 29, 2018 by Teachoo
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Ex 15.1, 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