A bimodal distribution means that there is “two of something” impacting the process.
Six Sigma Bimodal Distribution Videos
Six Sigma Green Belt Bimodal Distribution Questions
Question: When analyzing sample data a Belt may experience a Bimodal Distribution with each mode displaying Normal Distribution. This could be caused by _________________________ .
(a) Two different machines being read.
(b) Two operators on different shifts.
(c) Two suppliers parts being used.
(d) All these are correct answers.
Answer: D All of these answers are correct. If you see a bimodal distribution, you are most likely seeing a depiction of 2 different processes. 2 machines, supplier parts, operators, shifts could all ultimately be 2 or more distinct processes. See Bimodal.