A source of variation that is inherent in a system and predictable is typically known as:
A) special cause variation.
B) common cause variation.
C) systemic variation.
D) life cycle variation

Question

Quizplus · Accepted Answer

Common cause variation is the inherent variability that is inherent in the system and can be predicted. It is also known as random variation or noise. Special cause variation, on the other hand, is caused by assignable factors that are not inherent to the system and can be identified and eliminated. Systemic variation refers to a change in the mean or variance of a process over time due to external factors. Life cycle variation is not a recognized term in statistical process control.

A Source of Variation That Is Inherent in a System