Bimodal Distribution

A bimodal distribution is a distribution that has two separate and distinct peaks in it. A distribution of a data set describes the relative frequency of the occurrence of outcomes within each defined set of ranges. The term “bimodal” comes from the prefix “bi” meaning two. “Modal” comes from the Read more…

Control Limits

Control limits are lines established 3 standard deviations from the mean on a control chart. Keep in mind that the control chart depicts averages, so exhibits a normal distribution. (See Central Limit Theorem) 99.7% of all random variation (common cause) will fall within the upper and lower control limits. Outliers Read more…