What is Range?

The range of a dataset is the difference between the maximum and minimum values. It provides a simple measure of how spread out the values are, indicating the overall width of the data distribution.

Formula

• Range = max − min

Examples

• Dataset: 2, 7, 19, 24, 25 → Range: 25 − 2 = 23
• Dataset: 3, 3, 3, 3 → Range: 3 − 3 = 0

Notes

• The range is sensitive to outliers (extreme values).
• Use Interquartile Range (IQR) for a robust measure of spread when outliers are present.
• Combining range with standard deviation gives a more complete view of variability.