1.

Let bar(x) and M.D be the mean and the mean deviation about bar(x)of n observations x_(p) , i=1, 2 . . . . .n . If each of the observation is increased by 5, then the new meandeviation aboutthe new mean, respectively are .

Answer»

`BAR(x) , M.D`
`bar(x) + 5, M.D`
`bar(x), M.D. + 5`
`bar(x) - 15 , m M. D. + 5`

ANSWER :B


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