Mean of a certain number of observation is x. If each observation is divided by m(m ≠ 0) and increased by n, then the mean of new observation is(a) xm+n(b) xn+m(c) x+nm(d) x+mn

Mean of a certain number of observation is x. If each observation is d

1.	Mean of a certain number of observation is x. If each observation is divided by m(m ≠ 0) and increased by n, then the mean of new observation is(a) xm+n(b) xn+m(c) x+nm(d) x+mn
Answer» Mean of a certain number of observation is $x$ . If each observation is divided by m(m ≠ 0) and increased by n, then the mean of new observation is (a) $\frac{x}{m} + n$ (b) $\frac{x}{n} + m$ (c) $x + \frac{n}{m}$ (d) $x + \frac{m}{n}$