- Probability
- 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.*

**Synonyms**:

### Look at other dictionaries:

**Probability**— is the likelihood or chance that something is the case or will happen. Probability theory is used extensively in areas such as statistics, mathematics, science and philosophy to draw conclusions about the likelihood of potential events and the… … Wikipedia**probability**— ► NOUN (pl. probabilities) 1) the extent to which something is probable. 2) a probable or most probable event. ● in all probability Cf. ↑in all probability … English terms dictionary**probability**— probability, probability distribution See distribution (statistical or frequency)}} ; sampling ; significance tests ; … Dictionary of sociology**probability**— [präb΄ə bil′ə tē] n. pl. probabilities [MFr probabilité < L probabilitas] 1. the quality or state of being probable; likelihood 2. something probable 3. Math. the ratio of the number of times something will probably occur to the total number… … English World dictionary**probability**— I noun anticipation, appearance of truth, believability, chance, conceivability, credibility, credibleness, expectation, fair chance, fair expectation, favorable chance, liability, liableness, likelihood, likeliness, odds, ostensibility,… … Law dictionary**Probability**— [engl.], Wahrscheinlichkeit … Universal-Lexikon**probability**— (n.) mid 15c., quality of being probable, from O.Fr. probabilite (14c.) and directly from L. probabilitatem (nom. probabilitas), from probabilis (see PROBABLE (Cf. probable)). Meaning вЂњsomething likely to be trueвЂќ is from 1570s; mathematical… … Etymology dictionary**probability**— [n] likelihood of something happening anticipation, chance, chances, conceivability, contingency, credibility, expectation, feasibility, hazard, liability, likeliness, odds, outside chance*, plausibility, possibility, practicability, prayer,… … New thesaurus**probability**— noun ADJECTIVE ▪ high, real, strong ▪ There is a high probability that it will snow tonight. ▪ greater, increased ▪ low … Collocations dictionary**probability**— The mathematics of probability is well understood. Probability is a non negative, additive set function whose maximum value is unity. What is harder to understand is the application of the formal notion to the actual world. One point of… … Philosophy dictionary