Which visualization displays the distribution of numerical data across intervals?

Which visualization displays the distribution of numerical data across intervals?

• A. Baseline the metric
• B. Affinity diagram
• C. Histogram
• D. Decision paper

Answer: (C)

A histogram is the best way to show how numerical data are distributed across intervals. It groups data into equal-width bins and plots how many observations fall into each bin, giving a clear picture of the distribution’s shape, spread, and any skew or multiple peaks. This makes it easy to see where values cluster and how they vary. The other tools don’t serve this purpose. Baseline the metric is about establishing a reference point for a metric, not about displaying data distribution. An affinity diagram organizes ideas into clusters for qualitative analysis, not numeric distributions. A decision paper documents options and recommendations for a decision, rather than illustrating how data are distributed across intervals.

A histogram is the best way to show how numerical data are distributed across intervals. It groups data into equal-width bins and plots how many observations fall into each bin, giving a clear picture of the distribution’s shape, spread, and any skew or multiple peaks. This makes it easy to see where values cluster and how they vary.

The other tools don’t serve this purpose. Baseline the metric is about establishing a reference point for a metric, not about displaying data distribution. An affinity diagram organizes ideas into clusters for qualitative analysis, not numeric distributions. A decision paper documents options and recommendations for a decision, rather than illustrating how data are distributed across intervals.