In statistics, the average is used to measure the center of data, which forms one aspect of observations. The other set of observation is how the observations are spread across the center. The observation can either be close to the center or away from it. When the observation is close to the center, the dispersion or variance is said to be small and when they are spread away, the disp... https://www.expertsmind.com/statistics/measurement-of-dispersion-homework-assignment-help.aspx