CAPM Practice: Demonstrate an understanding of common problem-solving tools and techniques

A histogram displays the frequency distribution of data by grouping values into categories (bins). For 300 inspections grouped by defect severity, it clearly shows how defects are distributed across severity levels, revealing whether most defects are minor, moderate, or critical.

**Why not A:** A control chart monitors process stability over time by plotting data points against control limits. It does not display frequency distributions across categories, which is what the project manager needs to visualize defect severity patterns.

**Why not B:** A flowchart maps the sequential steps in a process. It shows how work flows through a system but does not display the frequency or distribution of data across categories like defect severity levels.

**Why not C:** A scatter diagram shows the relationship between two variables by plotting data points on an x-y axis. It is used to identify correlations, not to display how data is distributed across categories.