The central tendency is the point of accumulation of observations near the centres of any given data. The three types of central tendencies are Mean, Mode, and Median. How the data varies is measured as the variation of observations from these central tendencies and there are several ways in which we can perform this measurement. The most common ones are Range, Standard Deviation, and Variance. However, in this article, we will focus on the simplest measure of variation, which is Range. We will also cover the three central tendencies, Mean, Mode, and Median.