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x~-R Chart
x~-R Chart
An x (median) is a central value for odd data, or an average value of central two data for even data. That means x-R Chart shows the control chart of central value and its range.
Related term: Control Chart
An x (median) is a central value for odd data, or an average value of central two data for even data. That means x-R Chart shows the control chart of central value and its range.
![mrp_050-1.jpg](http://www.asprova.jp/mrp/glossary/en/assets_c/2011/09/mrp_050-1-thumb-400x145-1055.jpg)
Related term: Control Chart
Reference:JIT Business Research Mr. Hirano Hiroyuki