Using a histogram, you can tell if data is normally distributed, the process is capable of meeting customer requirements, changes have occurred in the process, or how two processes compare.Ī Pareto chart is another special kind of bar chart that shows the relative frequency or magnitude of a problem or cause. They have many purposes, including collecting data on the frequency or location of problems.Ī histogram is a special bar graph that is used to show how often a value, or range of values, occurs in a given time period.
The following key questions are answered in this module:Ĭheck sheets are simple data collection tools.
