Variation due to the inherent variability in a system of operation is called
A) special or assignable causes.
B) the standard deviation.
C) common or chance causes.
D) explained variation.

Question

Quizplus · Accepted Answer

Common or chance causes refer to the natural variation that is expected in any process, while special or assignable causes are due to specific factors that can be identified and addressed to improve the process. The standard deviation is a measure of the variability in a set of data, and explained variation refers to the portion of total variation that can be explained by a specific factor or variable. None of these options accurately describe the inherent variability in a system, which is best captured by the concept of common or chance causes.

Variation Due to the Inherent Variability in a System of Operation