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Project Management & Agile · Foundational

Pareto Chart

A bar chart sorted in descending order of frequency with a cumulative percentage line, used to identify the vital few causes.

Definition

Based on the Pareto principle (80/20 rule): roughly 80% of problems come from 20% of causes.

Example

Three defect types account for 78% of all customer complaints.

Exam tip

Use a Pareto chart to prioritize which problems to fix first.

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