noun, plural prob·a·bil·i·ties.
- the relative possibility that an event will occur, as expressed by the ratio of the number of actual occurrences to the total number of possible occurrences.
- the relative frequency with which an event occurs or is likely to occur.
Examples from the Web for probability
Probability: 96 percent, unless this spring you finally gave up and ordered central air conditioning, in which case, 15 percent.
A resurrection would be a miracle and as such would defy all “probability.”
The best we can offer is a probability that an earthquake might occur along a fault in a given period of time.A Lot of Earthquakes Have Been Reported Lately, but Scientists Aren’t Worried|Erik Klemetti|April 2, 2014|DAILY BEAST
The meaning of a “probability” estimate can be understood by resorting to the last refuge of political metaphors: sports.You Don’t Need Nate Silver to ‘Predict’ a GOP Win This Fall|Jeff Greenfield|March 26, 2014|DAILY BEAST
In all probability, Americans will continue to be killed and wounded, but at a lower rate.Should the Military Pull All Forces Out of Afghanistan After 2014?|Daniel L. Davis|February 28, 2014|DAILY BEAST
His dream of wealth and position would in all probability never have materialized.The Boy Broker|Frank A. Munsey
A glance at some Chinese and Japanese methods of cookery may perhaps convince us of the probability of these remarks.
I shall disappear as suddenly as I have come—you will neither of you, in all probability, ever see me again.'The Pirate and The Three Cutters|Frederick Marryat
In all probability most of Zerubbabel's and Ezra's pilgrims had been in humble circumstances.Expositor's Bible: Ezra, Nehemiah, and Esther|Walter Adeney
Accordingly, two spies were despatched to ascertain the probability of success.Life of Sir William Wallace of Elderslie, Vol. I (of II)|John D. Carrick
British Dictionary definitions for probability
noun plural -ties
Word Origin and History for probability
mid-15c., "quality of being probable," from Old French probabilite (14c.) and directly from Latin probabilitatem (nominative probabilitas) "credibility, probability," from probabilis (see probable). Meaning "something likely to be true" is from 1570s; mathematical sense is from 1718.
Science definitions for probability
Culture definitions for probability
A number between zero and one that shows how likely a certain event is. Usually, probability is expressed as a ratio: the number of experimental results that would produce the event divided by the number of experimental results considered possible. Thus, the probability of drawing the ten of clubs from an ordinary deck of cards is one in fifty-two (1:52), or one fifty-second.
Idioms and Phrases with probability
see in all probability.