Question

Find the Range & co-efficient of the Range for the following data
The heights of 10 children are 122, 144, 154, 101, 168, 118, 155, 133, 160, 140

Answer 1

Range =$x_m-x_0$
$x_m$ is the maximum value i.e. 168
$x_0$
is the minimum value i.e. 101
So, range = 168-101 =67
Coefficient of Range =$\frac{x_m-x_0}{x_m+x_0}$
$x_m-x_0=168-101=67$
Range $\frac{67}{269}$