Which statement best describes a Pareto diagram's purpose?

Which statement best describes a Pareto diagram's purpose?

• A. It orders problems from most to least significant to highlight priorities.
• B. It predicts future failures
• C. It measures the central tendency of data
• D. It shows the relationship between two variables

Answer: (A)

A Pareto diagram is used to identify and prioritize the most significant problems by arranging them from most to least significant according to their frequency or impact. By placing the issues left to right in order of importance and adding a cumulative line, you can see at a glance which few causes are driving most of the problems, guiding where to focus improvement efforts for the biggest payoff (often reflecting the 80/20 idea). It isn’t about predicting future failures, measuring a central tendency, or showing how two variables relate—that would involve other analytic tools like predictive methods, averages, or scatter plots.

A Pareto diagram is used to identify and prioritize the most significant problems by arranging them from most to least significant according to their frequency or impact. By placing the issues left to right in order of importance and adding a cumulative line, you can see at a glance which few causes are driving most of the problems, guiding where to focus improvement efforts for the biggest payoff (often reflecting the 80/20 idea). It isn’t about predicting future failures, measuring a central tendency, or showing how two variables relate—that would involve other analytic tools like predictive methods, averages, or scatter plots.