If a data set has two modes, what type of distribution is it known as?

When a data set has two modes, it is classified as a bimodal distribution. In statistical terms, a mode refers to the value(s) that appear most frequently in a data set. A bimodal distribution specifically indicates the presence of two distinct peaks or high frequency points within the data, which is characteristic of multiple modes.

In contrast, unimodal refers to having only one mode or peak, while trimodal describes a distribution with three modes. A normal distribution is a specific type of unimodal distribution that follows a symmetric bell curve. These distinctions are fundamental in understanding the characteristics of various types of distributions and the nature of data sets.