Question

find out range and co-efficient of range

Answer 1

the range is the difference between the upper boundary of the highest class and the lower boundary of the lowest class, while

Coefficient of Range is relative measure of dispersion and is based on the value of range. It is also called range coefficient of dispersion.

Answer 2

Range means difference between the highest score and the lowest score is called as range where as
coefficient of range is a relative measure of dispersion and it is based on the value of range. It is also called as range coefficient of dispersion .