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Project Management & Agile · Intermediate

Precision vs. Accuracy

Precision is consistency of repeated measurements; accuracy is closeness of a measurement to the true value.

Definition

Measurements can be precise but inaccurate (tightly clustered off target) or accurate but imprecise.

Example

A scale that always reads 2 kg heavy is precise but not accurate.

Exam tip

Precise does not mean accurate.

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