confidence interval

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Related to Confidence belt: Confidence coefficient, Confidence statement

confidence interval

[′kän·fə·dəns ‚in·tər·vəl]
(statistics)
An interval which has a specified probability of containing a given parameter or characteristic.

confidence interval

the range of values round the mean of a SAMPLE within which one can state the PROBABILITY of the observation being correct for the parent population. This is usually expressed in terms of standard deviation units. See also MEASURES OF DISPERSION, CRITERIA AND LEVELS OF MEASUREMENT.