Word.ws English Dictionary

Fisher information

Fisher information noun: 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.

Noun

Fisher information (uncountable)

  1. 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.

Origin of Fisher information

Named after the statistician Ronald Fisher.

Questions about Fisher information

What does Fisher information mean?
Fisher information means 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.
What part of speech is Fisher information?
Fisher information is a noun.

Words near Fisher information in the dictionary

  1. Fishendens
  2. fisher
  3. fisher cat
  4. fisher cats
  5. Fisher County
  6. Fisher information
  7. Fisher King
  8. Fisher's seahorse
  9. Fisher's seahorses
  10. fisher-boat
  11. fisher-boats

Source and license

Adapted from Wiktionary: Fisher information (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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