# Probabilities

﻿
Probabilities
Probability Prob`a*bil"i*ty, n.; pl. {Probabilities}. [L. probabilitas: cf. F. probabilit['e].] [1913 Webster] 1. The quality or state of being probable; appearance of reality or truth; reasonable ground of presumption; likelihood. [1913 Webster]

Probability is the appearance of the agreement or disagreement of two ideas, by the intervention of proofs whose connection is not constant, but appears for the most part to be so. --Locke. [1913 Webster]

2. That which is or appears probable; anything that has the appearance of reality or truth. [1913 Webster]

The whole life of man is a perpetual comparison of evidence and balancing of probabilities. --Buckminster. [1913 Webster]

We do not call for evidence till antecedent probabilities fail. --J. H. Newman. [1913 Webster]

3. (Math.) Likelihood of the occurrence of any event in the doctrine of chances, or the ratio of the number of favorable chances to the whole number of chances, favorable and unfavorable. See 1st {Chance}, n., 5. [1913 Webster]

Syn: Likeliness; credibleness; likelihood; chance. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

### Look at other dictionaries:

• probabilities — probÂ·aÂ·bilÂ·iÂ·ty || â€šprÉ‘bÉ™ bÉªlÉ™tÉª /â€šprÉ’ n. likelihood, reasonability, odds; chance, prospect, outlook …   English contemporary dictionary

• Risk-Neutral Probabilities — Probabilities of future outcomes adjusted for risk, which are then used to compute expected asset values. The benefit of this risk neutral pricing approach is that the once the risk neutral probabilities are calculated, they can be used to price… …   Investment dictionary

• Subjective probabilities — Probabilities that are determined subjectively (for example, on the basis of judgement rather than using statistical sampling). The New York Times Financial Glossary …   Financial and business terms

• subjective probabilities — probabilities ( probability) that are determined subjectively (for example, on the basis of judgment rather than statistical sampling). Bloomberg Financial Dictionary …   Financial and business terms

• Method of conditional probabilities — In mathematics and computer science, the probabilistic method is used to prove the existence of mathematical objects with desired combinatorial properties. The proofs are probabilistic they work by showing that a random object, chosen from some… …   Wikipedia

• Bridge probabilities — In the game of bridge mathematical probabilities play a significant role. Different declarer play strategies lead to success depending on the distribution of opponent s cards. To decide which strategy has highest likelihood of success, the… …   Wikipedia

• Class membership probabilities — In general proplems of classification, class membership probabilities reflect the uncertainty with which a given indivual item can be assigned to any given class. Although statistical classification methods by definition generate such… …   Wikipedia

• Upper and lower probabilities — are representations of imprecise probability. Whereas probability theory uses a single number, the probability, to describe how likely an event is to occur, this method uses two numbers: the upper probability of the event and the lower… …   Wikipedia

• Statistical Probabilities — ST episode series = Deep Space Nine name = Statistical Probabilities ep num = prod num = 514 date = November 22, 1997 writer = director = Anson Williams guest = stardate = Unknown year = 2374 prev = Resurrection next = The Magnificent Ferengi… …   Wikipedia

• Calculus of probabilities — Calculus Cal cu*lus, n.; pl. {Calculi}. [L, calculus. See {Calculate}, and {Calcule}.] 1. (Med.) Any solid concretion, formed in any part of the body, but most frequent in the organs that act as reservoirs, and in the passages connected with… …   The Collaborative International Dictionary of English