A dot plot represents each data point as a dot. Dots are placed along an axis, and repeated values can be stacked to show frequency. It is useful for small to medium datasets where the individual observations should remain visible.

Purpose

Dot plots show distribution without hiding individual values. They can reveal clusters, gaps, outliers, and repeated values more directly than summary-only charts.

Design Notes

• Use for small or moderate datasets.
• Stack or jitter dots to reduce overlap.
• Keep axes simple.
• Consider histograms or density plots for large datasets.

Summary

Dot plots are simple, transparent distribution charts. They are especially good when readers should see both individual values and overall pattern.