Question

"Average, measures of dispersion and skewness are complementary to one other ,in understanding a
frequency distribution elucidate the statement.
​

Answer 1

The dispersion measures or average measurements represent the entire series.

• The value is often between the minimum and maximum values and are usually located in the centre or middle of the distribution of frequencies containing their key characteristics.
• In statistical analysis , data condensation is important because a large number of big figures are not only confounding to the mind, but also difficult to analyse.
• Dispersion is the degree of variance of a central variable. Dispersion not only provides a general idea of a series' variability, but also a precise measure of the variation.
• Central trend indicators inform about the concentration of items around the core value, and measures of skewness tell us whether the average dispersion of items is symmetrical.