Which tool uses a cumulative line to show the percent of defects accounted for by each category?

Which tool uses a cumulative line to show the percent of defects accounted for by each category?

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

Answer: (A)

A Pareto diagram combines bars for defect categories arranged from most to least frequent with a line that shows the running total percentage of defects. The bars reveal which categories occur most often, and the cumulative line shows how much of the total defects is accounted for as you add categories in order. This makes it easy to identify the few categories that cause most problems and prioritize improvement efforts accordingly. Histograms show the distribution of a single numeric variable without a cumulative percent line. Flow charts map steps in a process, not defect categories. Scatter diagrams plot the relationship between two variables.

A Pareto diagram combines bars for defect categories arranged from most to least frequent with a line that shows the running total percentage of defects. The bars reveal which categories occur most often, and the cumulative line shows how much of the total defects is accounted for as you add categories in order. This makes it easy to identify the few categories that cause most problems and prioritize improvement efforts accordingly. Histograms show the distribution of a single numeric variable without a cumulative percent line. Flow charts map steps in a process, not defect categories. Scatter diagrams plot the relationship between two variables.