Question

Let $\overline{X}$ and M.D. be the mean and the mean deviation about $\overline{X}$ of n observations $\x_{i}$, i = 1, 2, ........, n. If each of the observations is increased by 5, then the new mean and the mean deviation about the new mean, respectively, are:
(a) $\overline{X}$, M.D.
(b) $\overline{X}$ + 5, M.D.
(c) $\overline{X}$, M.D.+ 5
(d) $\overline{X}$ + 5, M.D.+ 5

Answer 1

Hello mate ☺

Option D is correct one

Hope it helps u...❤

Answer 2

Let $\overline{X}$ and M.D. be the mean and the mean deviation about $\overline{X}$ of n observations $\x_{i}$, i = 1, 2, ........, n. If each of the observations is increased by 5, then the new mean and the mean deviation about the new mean, respectively, are:

(a) $\overline{X}$, M.D.

(b) $\overline{X}$ + 5, M.D.

(c) $\overline{X}$, M.D.+ 5

(d) $\overline{X}$ + 5, M.D.+ 5✔