LSSGB: Statistical quality control techniques are an application of:

OPTIONS

• Permutation concepts
• Probability theory
• Pareto’s law
• Logarithmic interpolation

ANSWER

Probability theory

EXPLANATION

Choices a and d are not serious considerations. Pareto’s law is an important quality control concept, but it is based on an observation of fact. All quality control techniques, such as control charts, are based on probability, which advises us when to take action and when not to take action.