Postulate 1. All chance systems of causes are not alike in the sense that they enable us to predict the future in terms of the past.
Postulate 2. Constant systems of chance causes do exist in nature.
Postulate 3. Assignable causes of variation may be found and eliminated. (Walter A. Shewhart)

Postulate 1. All chance systems of causes are not alike in the sense that they enable us to predict the future in terms of the past. Postulate 2. Constant systems of chance causes do exist in nature. Postulate 3. Assignable causes of variation may be found and eliminated.

Walter A. Shewhart

Related topics

chance constant found future nature past postulate predict sense variation

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