SIX SIGMA Glossary: Bimodal Distribution

A Bimodal distribution is a type of Continuous Distribution that has two peaks. It commonly occurs when the output from two process streams are mixed. Each individual process stream conforms to a normal distribution, but each has a different Mean and Standard Deviation.

bimodal distribution

An example could be when the output from two similar machines, each set to a slightly different size, is mixed.

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