exchangeability

exchangeability
In the subjective or personalist theory of probability a substitute must be found for the apparently objective or realist notion of an unknown probability, say of a coin coming up heads. The personalist substitute for the notion, developed by de Finetti, regards the event as a member of a sequence of tosses, which are in turn thought of as having the property that the probability of any n-fold subset of the events being a case of heads depends solely on n. To regard a sequence in this way is to regard events in it as exchangeable, and provides a personalist substitute for the classical notion of a sequence of independent events sharing a fixed unknown probability.

Philosophy dictionary. . 2011.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Exchangeability — Ex*change a*bil i*ty, n. The quality or state of being exchangeable. [1913 Webster] The law ought not be contravened by an express article admitting the exchangeability of such persons. Washington. [1913 Webster] …   The Collaborative International Dictionary of English

  • exchangeability — pakeičiamumas statusas T sritis fizika atitikmenys: angl. exchangeability; replaceability vok. Austauschbarkeit, f; Vertauschbarkeit, f rus. заменимость, f; заменяемость, f pranc. remplaçabilité, f …   Fizikos terminų žodynas

  • exchangeability — noun see exchange II …   New Collegiate Dictionary

  • exchangeability — noun The condition of being exchangeable …   Wiktionary

  • exchangeability — n. quality of being exchangeable, capable of being exchanged; replaceability; interchangeability …   English contemporary dictionary

  • exchangeability — noun the quality of being capable of exchange or interchange • Syn: ↑interchangeability, ↑interchangeableness, ↑fungibility • Ant: ↑unexchangeability • Derivationally related forms: ↑fungible ( …   Useful english dictionary

  • exchangeable — exchangeability, n. exchangeably, adv. /iks chayn jeuh beuhl/, adj. capable of being exchanged. [1565 75; EXCHANGE + ABLE] Syn. EXCHANGEABLE, INTERCHANGEABLE apply to something that may replace something else. That which is EXCHANGEABLE may be… …   Universalium

  • Bruno de Finetti — Born 13 June 1906(1906 06 13) Innsbruck, Austria …   Wikipedia

  • de Finetti's theorem — In probability theory, de Finetti s theorem explains why exchangeable observations are conditionally independent given some latent variable to which an epistemic probability distribution would then be assigned. It is named in honor of Bruno de… …   Wikipedia

  • De Finetti's theorem — In probability theory, de Finetti s theorem explains why exchangeable observations are conditionally independent given some (usually) unobservable quantity to which an epistemic probability distribution would then be assigned. It is named in… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”