Dispersion refers to a statistical term which depicts the size of the distribution of values expected for a specific variable. Dispersion can be estimated by several different statistics, such as range, variance, and standard deviation.

What is dispersion in science?

dispersion, in wave motion, any phenomenon associated with the propagation of individual waves at speeds that depend on their wavelengths. … Dispersion is sometimes called the separation of light into colours, an effect more properly called angular dispersion.

What is dispersion class 11th?

Dispersion is a measure of the variation of the items from central value. The measures of dispersion is important to compare uniformity, consistency and reliability amongst variables / series. … Relative measures are expressed in ratios or percentage of average, also known as coefficients of dispersion.