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StatisticsIntermediate

Confidence Interval

Definition

A range of values, derived from sample data, that is likely to contain the true population parameter with a specified level of confidence (commonly 95%).

Example

The mean blood pressure reduction was 8 mmHg (95% CI: 5-11 mmHg).

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Related Terms

P-valueMeanStandard DeviationStatistical Significance

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Last updated: March 2026