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control chart

noun, Statistics.
1.
a chart on which observations are plotted as ordinates in the order in which they are obtained and on which control lines are constructed to indicate whether the population from which the observations are being drawn is remaining the same: used especially in industrial quality control.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for control chart
  • Once a control chart is produced it is then used to identify special causes of variation.
  • He developed a tool that he called the control chart, which could graphically depict variation.
  • Select the control chart that the system uses to monitor process variability.
British Dictionary definitions for control chart

control chart

noun
1.
(statistics) a chart on which observed values of a variable are plotted, usually against the expected value of the variable and its allowable deviation, so that excessive variations in the quality, quantity, etc, of the variable can be detected
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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