Sources of process variations that are inherent to the process design are called ___________ causes of variation.
A) common
B) assignable
C) unusual
D) expected

Question

Quizplus · Accepted Answer

Common causes of variation are also known as natural or inherent causes of variation. These variations are expected and are a result of the process design or the system itself. They are inherent in the process and cannot be eliminated completely. Examples of common causes of variation include differences in operator techniques, variation in raw materials, and weather-related changes. Assignable or special causes of variation, on the other hand, are not inherent to the process design and can be eliminated by identifying and addressing the root cause.

Sources of Process Variations That Are Inherent to the Process