Lean Bronze

Category - Continuous Improvement

Which of the following would NOT be considered one of the four factors which causes variation?
  1. Special causes.
  2. Environmental variation.
  3. Common causes.
  4. Tampering to compensate for the range of variability.
Explanation
Answer: B - Environmental variation would NOT be considered one of the four factors which causes variation. Variation is a change in data, characteristic, or function caused by one of the four factors which cause variation. These factors are special causes, tampering, common causes, and structural variation.
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