---
tag: 0S6T9KQNC0
kind: concept
name: Confidence interval
aliases: [confidence-level]
msc: [62F25]
sources:
  - url: https://en.wikipedia.org/wiki/Confidence_interval
    locator: lead section
same_as:
  wikidata: Q208498
  wikipedia: Confidence interval
---

## Summary

A confidence interval is an interval computed from the data. Over repetitions of the experiment, it contains an unknown parameter with a fixed probability, such as $95\%$.
The node [[confidence interval|0K4NMMJBG2]] gives the precise definition.