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Applied Mathematics · Ch 10 — Descriptive Statistics

Pie Chart

10.4.2

Pie Chart

A pie chart is a circular statistical graphic divided into sectors, each representing a proportion of the whole. The central angle of each sector is proportional to the frequency or percentage of the corresponding category, making it ideal for showing relative sizes at a glance. Unlike bar graphs, pie charts emphasize the part-to-whole relationship rather than comparisons between individual values. They are most effective when you have a small …