Webster
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Webster’s Revised Unabridged Dictionary · 1913

Probability

Prob′a·bil′i·ty, n.; pl. Probabilities (#). [L. probabilitas: cf. F. probabilité.]

1. The quality or state of being probable; appearance of reality or truth; reasonable ground of presumption; likelihood.

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.

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

The whole life of man is a perpetual comparison of evidence and balancing of probabilities. Buckminster.

We do not call for evidence till antecedent probabilities fail. J. H. Newman.

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.

Syn. — Likeliness; credibleness; likelihood; chance.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty. Of the others, 1,362 (a word or a single letter each) were inferred by AI from the context by the dictionary’s own rules and are marked with a wavy underline (tap or point at one to see the note); the rest, which could not be inferred with confidence, are left as “?”.