bimodal distribution
A bimodal distribution is a type of probability distribution that has two different modes, or peaks, in its frequency graph. This means that when data is plotted, there are two distinct values that occur more frequently than others. Bimodal distributions can arise in various fields, such as statistics, psychology, and economics, often indicating the presence of two different groups within the data set.
These two peaks suggest that the data may be influenced by two underlying processes or populations. For example, in a study of test scores, one peak might represent students who studied extensively, while the other peak could represent those who did not prepare. Understanding bimodal distributions helps researchers identify and analyze the characteristics of different subgroups within a larger population.