Mode The value that occurs most often in a data set
A data set that has only one value that occurs with the greatest frequency is said to be unimodal.
If a data set has two values that occur with the same greatest frequency, both values are considered to be the mode and the data set is said to be bimodal.
If a data set has more than two values that occur with the same greatest frequency, each value is used as the mode, and the data set is said to be multimodal.