“A measure of dispersion is a good supplement to the central value in understanding a frequency distribution”. Comment.

Measures of dispersion enhance the understanding of a distribution considerably by providing information about how much the actual value of items in a series deviate from the central value e.g., i per capita income gives only the average income but a measure of dispersion can tell you about income inequalities, thereby improving the understanding of the relative living standards of different sections of the society.

Thus, a measure of dispersion is a good supplement to the central value in understanding a frequency distribution.