Special Cause Variation falls into which two categories?

Question

Quizplus · Accepted Answer

Special Cause Variation falls into two categories: Assignable and Pattern. Assignable causes are specific, identifiable reasons for variation, such as machine breakdowns or operator error. Pattern causes are recurring trends or patterns that can be observed in the data, such as seasonality or a shift in market demand. Option A is not correct as "Unnatural" is not a recognized term in statistical process control. Option B is not correct as Short Term & Long Term is a classification based on variation, whereas Special Cause Variation is a classification based on the source of variation. Option D is not correct as "Attribute" and "Discreet" are not relevant terms in statistical process control.

Special Cause Variation Falls into Which Two Categories