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Histograms
Pareto Charts
Cause and Effect Diagrams
Check Sheets
Scatter Diagrams
Flowcharts
Control Charts
A histogram is a graphical representation of data in a bar chart format.
Histograms are also used to observe the “shape” of data.
The width of the histogram bars must be consistent.
The classes must be mutually exclusive and all inclusive.
The number of the classes is decided by 2k>=n where n is the number of data values and k is the number of classes.
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