Question

What are the uses of mode how are quartiles calculated

Answer 1

Mode is defined as the value that occurs most frequently in the data. Some data sets do not have a mode because each value occurs only once. On the other hand, some data sets can have more than one mode. This happens when the data set has two or more values of equal frequency which is greater than that of any other value. Mode is rarely used as a summary statistic except to describe a bimodal distribution. In a bimodal distribution, the taller peak is called the major mode and the shorter one is the minor mode.

Advantages
It is the only measure of central tendency that can be used for data measured in a nominal scale.[5]
It can be calculated easily.