Multiple choice six-sigma green-belt

Which one of the following is TRUE?

  1. Smaller the variation, less the chances of defect occurrence

  2. Smaller the mean, smaller will be the Process Sigma

  3. Smaller the standard deviation, larger will be the process variation

  4. Smaller the mean, smaller will be the variation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lower process variation means outputs are more consistent and closer to the target, reducing the likelihood of defects. Option B is incorrect because Process Sigma depends on variation (standard deviation), not the mean. Option C is wrong because smaller standard deviation means less variation, not more. Option D is incorrect because mean and variation are independent measures.

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