The Range is the difference between the highest and lowest values in a set of data. In this post: The Range The Interquartile Range Semi Interquartile Range Max and Min Values Cite this post Sutton, G. W. (2026, August 6). Range in statistics. Assessment, Statistics, and Research . https://statistics.suttong.com/2026/08/range-in-statistics.html In statistics, the Range is represented by the letter "R", the highest value is the Maximum abbreviated as Max and the smallest value is the Minimum abbreviated as Min. To calculate the range, subtract Min from Max. R = Max - Min Example: Rating Scale Data Set: 2,3,4,5,7 R = 7 - 2. R = 5 Using the Range The range is used in conjunction with the median (Mdn), Max and Min to describe basic characteristics of a set of values. The range is a rough index of the spread of values in a data set. Statisticians refer to the spread as dispersion thus, the range is a measure of dispersion. The Median and the Range...
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