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Common and special causes are the two distinct origins of variation in a process, as defined in the statistical thinking and methods of Walter A. Shewhart and W. Edwards Deming. Briefly, "common causes", also called natural patterns, are the usual, historical, quantifiable variation in a system, while "special causes" are unusual, not previously…
Technology, Art & Measurement
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variation probability shewhart deming common system failure special-cause keynes causes isbn events control statistical common-cause special new term two process
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