411 REFERENCE · Wiktionary
Fisher information
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after the statistician Ronald Fisher.
Noun
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en statistics A measure of the amount of information that an observable random variable X carries about an unknown parameter θ of a distribution that models X. Formally, it is the variance of the score, or the expected value of the observed information.
en eponyms