Which tool sorts data into categories to help teams identify the most significant factors that contribute the most to problems?

A Pareto chart is a quality management tool that combines a bar chart and a line graph. The bars display the frequency or impact of problems in descending order, while the line graph shows the cumulative percentage. This format is specifically designed to highlight the "vital few" causes that contribute to the majority of problems, allowing teams to prioritize their improvement efforts on the most significant factors. This principle is often referred to as the 80/20 rule.

A. A run chart tracks a process performance metric over time to identify trends or patterns, not to categorize and prioritize problem causes.

B. A flowchart is a diagram that visually represents the sequence of steps and decisions in a process, not the significance of contributing factors.

D. A cause chart, often a cause-and-effect diagram, brainstorms potential causes for a problem but does not use data to sort them by significance.

1. Montgomery, D. C. (2013). Introduction to statistical quality control (7th ed.). John Wiley & Sons. Chapter 5, Section 5-2.4, "The Pareto Chart," pp. 193-194.

2. MIT OpenCourseWare. (2006). 16.660J Introduction to Lean Six Sigma Methods. IAP 2006. Lecture 2: Basic Quality Tools, slide 16, which describes the Pareto chart as a tool for prioritizing problems.