Answer: Measures of variability are used to characterize how the data are spread around the mean of the distribution.
Step-by-step explanation:The measures of average such as the median and mean represent the typical value for a dataset.However , In the dataset the actual values usually differ from one another and from the average value itself.
In this case the measure of spread, sometimes also called a measure of dispersion, is used to describe the variability in a sample or population around the mean .
