Glossary

The mode is a measure calculated by identifying the value that appears with greatest frequency in a set of data. If two numbers occur in a set with equal frequency, the set is said to contain bimodal data. If there are more than two numbers in a set that occur with equal frequency, the set is said to contain multimodal data. The mode of the set {1, 2, 3, 4, 4, 5} is 4. In the set {1, 2, 2, 4, 5, 7, 7}, the modes are both 2 and 7, making the set bimodal. The mode is sometimes used as a measure of location.