Multiple choice six-sigma green-belt

Observed variation is

  1. The True variation

  2. The summation of true variation & bias

  3. The difference between true variation & bias

  4. The bias
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Observed variation includes both the actual process variation and any bias in the measurement system. We distinguish between true process variation and measurement system variation to understand total variability. Bias systematically shifts measurements away from true values.

Keep practicing — related questions