The range of a data set is the difference between the largest and smallest values. It measures spread in a single number, though one outlier can make it misleading about the rest of the data.
Math Dictionary / Range
Range
The range of a data set is the difference between the greatest and least values.
StatisticsGrade 5Grade 6Grade 7Grade 8GEDSATACT
What it means
Range is a simple measure of spread.
Also called: spread
Examples
| For 2, 5, 9, range = 7 |
| Maximum minus minimum gives range |
| Outliers can make the range large |
Common mistake
Do not confuse data range with function range. In statistics, range means max minus min.
Try one
Question: Find the range of 4, 10, 15.
Show answer
15 – 4 = 11.