Which chart contains both bars and a line showing the cumulative total?

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

Answer: (B)

This item tests recognizing a chart that combines bars with a line showing cumulative totals to highlight the most impactful factors. In a Pareto chart, categories are ordered from largest to smallest by frequency or cost. The bars display the individual magnitudes for each category, and a line overlaid on the same chart shows the running total (percent or count) of all categories. This setup lets you quickly see which few causes account for the majority of the effect, guiding prioritization.

Flowcharts map steps in a process, not the magnitude of categories. Histograms show the distribution of a single variable with bars but no running total line. Scatter diagrams plot two variables to reveal relationships, not cumulative totals.