The confidence interval
Example: Confidence interval estimates range within which true value lies
Definition
"The confidence interval" is a range of values derived from sample data that is likely to contain the true population parameter with a specified level of confidence, such as 95%. It provides an estimated range within which the true value lies, reflecting the precision of a statistical estimate.
Etymology
The term "confidence interval" originated in statistics, combining 'confidence' to indicate trust or assurance, and 'interval' meaning a range or space between two points. It was introduced in the early 20th century to describe the range within which a population parameter is estimated to fall with a given probability.
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"The confidence interval" appears in the Vocaplus list "English - Research - (A1-C2) - set 1", containing 108 commonly used words.
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