If X¯ is the mean of x1,x2,.......,xn , then for a≠0, the mean of ax1,ax2,......,axn, x1a,x2a,...,xnn is (a) a+1aX¯(b) 12a+1aX¯(c) a+1nX¯n(d) a+1aX¯2n

If X¯ is the mean of x1,x2,.......,xn , then for a≠0, the mean of

1.	If X¯ is the mean of x1,x2,.......,xn , then for a≠0, the mean of ax1,ax2,......,axn, x1a,x2a,...,xnn is (a) a+1aX¯(b) 12a+1aX¯(c) a+1nX¯n(d) a+1aX¯2n
Answer» If $\bar{X}$ is the mean of x₁,x₂,.......,x_n , then for $a \neq 0$ , the mean of ax₁,ax₂,......,ax_n, $\frac{x_{1}}{a}, \frac{x_{2}}{a}, . . ., \frac{x_{n}}{n} is$ $(a) (a + \frac{1}{a}) \bar{X} (b) \frac{1}{2} (a + \frac{1}{a}) \bar{X} (c) (a + \frac{1}{n}) \frac{\bar{X}}{n} (d) (a + \frac{1}{a}) \frac{\bar{X}}{2 n}$