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Encyclopedia > Estimation

Estimation is the calculated approximation of a result which is usable even if input data may be incomplete, uncertain, or noisy. A calculation is a deliberate process for transforming one or more inputs into one or more results. ... It has been suggested that this article or section be merged with estimation. ... â€œUncertainâ€ redirects here. ... This article is about noise as in sound. ...

In statistics, see estimation theory, estimator. This article is about the field of statistics. ... Estimation theory is a branch of statistics and signal processing that deals with estimating the values of parameters based on measured/empirical data. ... In statistics, an estimator is a function of the observable sample data that is used to estimate an unknown population parameter; an estimate is the result from the actual application of the function to a particular set of data. ...

In mathematics, approximation or estimation typically means finding upper or lower bounds of a quantity that cannot readily be computed precisely and is also an educated guess . While initial results may be unusably uncertain, recursive input from output, can purify results to be approximately accurate, certain, complete and noise-free. For other meanings of mathematics or math, see Mathematics (disambiguation) and Math (disambiguation). ... It has been suggested that this article or section be merged with estimation. ... In mathematics, especially in order theory, an upper bound of a subset S of some partially ordered set is an element which is greater than or equal to every element of S. The term lower bound is defined dually. ... A related article is titled uncertainty. ... This article is about the concept of recursion. ... Categories: Move to Wiktionary | Stub | Chemistry ...

In project management, see estimation (project management). Project Management is the discipline of organizing and managing resources (e. ... In project management (ie. ...

Estimation theory is a branch of statistics and signal processing that deals with estimating the values of parameters based on measured/empirical data. ... Estimated sign The estimated sign is a mark required to be appended to the nominal mass or volume printed on prepackaged goods for sale within the European Union. ... In physics, particularly in physics education, a Fermi problem or Fermi question is an estimation problem designed to teach dimensional analysis, approximation, and the importance of clearly identifying ones assumptions. ... The sample size of a statistical sample is the number of repeated measurements that constitute it. ... Look up guesstimate in Wiktionary, the free dictionary. ...

Results from FactBites:

 estimator: Definition and Much More from Answers.com (616 words) In statistics, an estimator is a function of the known sample data that is used to estimate an unknown population parameter; an estimate is the result from the actual application of the function to a particular set of data. The standard deviation of an estimator of θ (the square root of the variance), or an estimate of the standard deviation of an estimator of θ, is called the standard error of θ. A consistent estimator is an estimator that converges in probability to the quantity being estimated as the sample size grows.
 PlanetMath: estimator (78 words) In addition, sample median, sample mode, sample trimmed mean are all estimators of This is version 3 of estimator, born on 2004-12-09, modified 2005-08-03. Object id is 6549, canonical name is Estimator.
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