Which diagram is used to rank defects by frequency and can include a cumulative line?

Which diagram is used to rank defects by frequency and can include a cumulative line?

• A. Pareto Diagram
• B. Histogram
• C. Fishbone Diagram
• D. Flow Chart

Answer: (A)

A Pareto diagram ranks defects by how often they occur and can add a cumulative line to show the growing share of total defects as you move down the list. It uses bars arranged from most frequent to least frequent, with an overlaid line that tracks cumulative percentage. This visualization highlights the small number of defect types that drive the majority of problems, aligning with the 80/20 idea and guiding you to prioritize improvements where they’ll have the biggest impact. The other diagrams have different purposes: a histogram shows the distribution of defect counts across ranges, a fishbone (Ishikawa) diagram maps potential causes and their relationships, and a flow chart outlines the steps in a process.

A Pareto diagram ranks defects by how often they occur and can add a cumulative line to show the growing share of total defects as you move down the list. It uses bars arranged from most frequent to least frequent, with an overlaid line that tracks cumulative percentage. This visualization highlights the small number of defect types that drive the majority of problems, aligning with the 80/20 idea and guiding you to prioritize improvements where they’ll have the biggest impact. The other diagrams have different purposes: a histogram shows the distribution of defect counts across ranges, a fishbone (Ishikawa) diagram maps potential causes and their relationships, and a flow chart outlines the steps in a process.