Random variation in a process can be caused by which of the following?
A) people
B) machinery
C) materials
D) all the above
E) none of the above

Question

Quizplus · Accepted Answer

All of the above (people, machinery, materials) can contribute to random variation in a process. Human error or inconsistency, machine malfunctions or variations in calibration, and variability in the materials being used can all result in random variation.

Random Variation in a Process Can Be Caused by Which