1.

Find the mean deviation using arithmetic mean of the following data: 16,22,26,14,12,15,13,18,

Answer»

SOLUTION :
Here `N=8, sum x_(1)=136`
`:.` Arthmetic mean `BARX=(sum x_(i))/n=136/8=17`
Mean deviatinon `=(sum_(i=1)^(n)|x_(i)-barx|)/n`
`=30/8=3.75`


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