What does a bimodal distribution tell you?

What does a bimodal distribution tell you?

What does a Bimodal Distribution tell you? You’ve got two peaks of data, which usually indicates you’ve got two different groups. For example, exam scores tend to be normally distributed with a single peak.

What is bimodal distribution example?

a set of scores with two peaks or modes around which values tend to cluster, such that the frequencies at first increase and then decrease around each peak. For example, when graphing the heights of a sample of adolescents, one would obtain a bimodal distribution if most people were either 5’7” or 5’9” tall.

How do you describe a bimodal distribution?

Distributions with two equal peaks are “bimodal” since two scores appear more frequently than the others but are equally frequent to each other. There are also cases in which a distribution appears to have two peaks, but one peak is larger than the other, such as the one below.

What is bimodal frequency distribution in statistics?

In statistics, a bimodal distribution is a probability distribution with two different modes, which may also be referred to as a bimodal distribution. These appear as distinct peaks (local maxima) in the probability density function, as shown in Figures 1 and 2.

Which of the following is a bimodal distribution?

Explanation: For example, {1,2,3,3,3,5,8,12,12,12,12,18} is bimodal with both 3 and 12 as separate distinct modes.

Can bimodal distribution be skewed?

Bimodal histograms can be skewed right as seen in this example where the second mode is less pronounced than the first. Distributions having more than two modes are called multi-modal.

Why do bimodal distributions occur?

Often bimodal distributions occur because of some underlying phenomena. For example, the number of customers who visit a restaurant each hour follows a bimodal distribution since people tend to eat out during two distinct times: lunch and dinner. This underlying human behavior is what causes the bimodal distribution.

Can a bimodal distribution be skewed?

What is unimodal and bimodal distribution?

A unimodal distribution only has one peak in the distribution, a bimodal distribution has two peaks, and a multimodal distribution has three or more peaks. Another way to describe the shape of histograms is by describing whether the data is skewed or symmetric.

Which distribution is bimodal?

A bimodal distribution has two peaks (hence the name, bimodal). They are usually a mixture of two unique unimodal (only one peak, for example a normal or Poisson distribution) distributions, relying on two distributed variables X and Y, with a mixture coefficient α.