A distribution that shows two distinct peaks is called what?

A distribution that shows two distinct peaks is called what?

• A. Skewed Distribution
• B. Bimodal Distribution
• C. Uniform Distribution
• D. Normal Distribution

Answer: (B)

Two distinct peaks indicate that the data are concentrated around two values or ranges, suggesting two subgroups or processes contributing to the observations. This is called a bimodal distribution. The term “mode” refers to the most frequent value, and bimodal means there are two such high-frequency regions. In a histogram or density plot, you’d see two humps separated by a lower area in between. This is different from a normal distribution, which has a single central peak; a skewed distribution has one peak with asymmetry and a longer tail on one side; a uniform distribution shows roughly equal frequencies across the entire range with no pronounced peak. Recognizing bimodality helps you consider the possibility of two distinct populations or conditions in the data and whether separate analysis or controls are appropriate for each group.

Two distinct peaks indicate that the data are concentrated around two values or ranges, suggesting two subgroups or processes contributing to the observations. This is called a bimodal distribution. The term “mode” refers to the most frequent value, and bimodal means there are two such high-frequency regions. In a histogram or density plot, you’d see two humps separated by a lower area in between. This is different from a normal distribution, which has a single central peak; a skewed distribution has one peak with asymmetry and a longer tail on one side; a uniform distribution shows roughly equal frequencies across the entire range with no pronounced peak. Recognizing bimodality helps you consider the possibility of two distinct populations or conditions in the data and whether separate analysis or controls are appropriate for each group.