1.

x_1,x_2, x_3,………., x_n are n observations . sum_(i=1)^(n) (x_i- 2) = 100 " and " sum_(i=1)^(n) (x_i- 5) = 20 then mean barx = …….

Answer»

`23/4`
`14/3`
`3/11`
`10`

ANSWER :A


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