used in mathematical statistics to determine an estimated value
In statistics, an estimator is a rule for calculating an estimate of a given amount based on observed data: thus the rule (the estimator), the amount that is being measured (the estimand) and its result (the estimate) are different.
- Mosteller, F.; Tukey, J. W. (1987) . "Data Analysis, including Statistics". The Collected Works of John W. Tukey: Philosophy and Principles of Data Analysis 1965–1986. Vol. 4. CRC Press. pp. 601–720 [p. 633]. ISBN 0-534-05101-4 – via Google Books.
- "List of Probability and Statistics Symbols". Math Vault. 2020-04-26. Retrieved 2020-09-12.
- Taylor, Courtney (January 13, 2019). "Unbiased and Biased Estimators". ThoughtCo. Retrieved 2020-09-12.