Ex 15.1, 2 - Chapter 15 Class 11 Statistics (Term 1)
Last updated at Sept. 6, 2021 by Teachoo
Last updated at Sept. 6, 2021 by Teachoo
Transcript
Ex 15.1, 2 Find the mean deviation about the mean for the data 38, 70, 48, 40, 42, 55, 63, 46, 54, 44 Mean of the given data = (๐๐ข๐ ๐๐ ๐๐๐ ๐ก๐๐๐๐ )/(๐๐๐ก๐๐ ๐๐ข๐๐๐๐ ๐๐ ๐ก๐๐๐๐ ) ๐ฅ ฬ = (38 + 70 + 48 + 40 + 42 + 55 + 63 + 46 + 54 + 44)/(10 ) = 500/10 = 50 38 38 โ 50 = โ12 70 70 โ 50 = 20 48 48 โ 50 = โ2 40 40 โ 50 = โ10 42 42 โ 50 = โ8 55 63 46 54 44 Mean deviation about mean = ( โ128โ|๐ฅ๐ โ ๐ฅ ฬ | )/10 = 84/10 = 8.4
Mean deviation about mean - Ungrouped
Mean deviation about mean - Ungrouped
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