1.

Let overset (-) xand M.D. be the mean and the mean deviations about overset( -)xof n observations x_i , i= 2……,nIf each of the observation is increased by 5, then the new mean and mean deviations about the new mean, respectively are:

Answer»

`overset(-) X ,M.D.`
` overset(-) x +5, M.D.`
`overset(-)x ,M.D. +5`
` overset(-) x -15, M.D. +5`

ANSWER :B


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