# probability

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Related to probable: probable cause

## Probability

The relative likelihood of a particular outcome among all possible outcomes.

## probability

the likelihood of a particular uncertain event occurring, measured on a scale from 0.0 (such an event is impossible) to 1.0 (such an event is certain to occur). People generally estimate probabilities on the basis of the relative frequency with which an event has occurred in the past, under given circumstances, and generalize from this past experience. In some circumstances it is easy to estimate the proportion of occasions on which an event occurs; for example, the probability of getting ‘heads’ when flipping a balanced coin is 0.5 because with such a coin in the long run we would get 50% ‘heads’ and 50% ‘tails’. In estimating probabilities in business situations, though, there may be no or only a few previous experiences that can be used to gauge the relative frequency of an event occurring. See also RISK AND UNCERTAINTY.
References in classic literature ?
On their journeys those Britons were used to long fasts, and knew how to bear them; and also how to freight up against probable fasts before starting, after the style of the Indian and the anaconda.
It is probable indeed that any professorial gaze lucky enough to meet a pair of dark eyes shining under that white rose garland would never have stopped at respect!
It is possible, and even quite probable, that but for the mere circumstance of being removed from that plantation to Baltimore, I should have to-day, instead of being here seated by my own table, in the enjoyment of freedom and the happiness of home, writing this Narrative, been confined in the galling chains of slavery.
She thought it would be an excellent match; and only too palpably desirable, natural, and probable, for her to have much merit in planning it.
Her opinion varying with every fresh conjecture, and all seeming equally probable as they arose.
My object in taking this step is to cause a search to be instituted for the Trust -- in the very probable event of the executors not having met with it yet -before the usual measures are adopted for the administration of the admiral's estate.
There is indeed a perpetual commerce between this kingdom and the great empire of Japan; and it is very probable, that the Japanese authors may have given some account of the STRULDBRUGS; but my stay in Japan was so short, and I was so entirely a stranger to the language, that I was not qualified to make any inquiries.
Of philosophy I will say nothing, except that when I saw that it had been cultivated for many ages by the most distinguished men, and that yet there is not a single matter within its sphere which is not still in dispute, and nothing, therefore, which is above doubt, I did not presume to anticipate that my success would be greater in it than that of others; and further, when I considered the number of conflicting opinions touching a single matter that may be upheld by learned men, while there can be but one true, I reckoned as well-nigh false all that was only probable.
It is not at all probable that this unbridled spirit would pay much respect to those regulations of trade by which particular States might endeavor to secure exclusive benefits to their own citizens.
The North is generally the region of strength, and many local circumstances render it probable that the most Northern of the proposed confederacies would, at a period not very distant, be unquestionably more formidable than any of the others.
But as the ultimate object of these papers is to determine clearly and fully the merits of this Constitution, and the expediency of adopting it, our plan cannot be complete without taking a more critical and thorough survey of the work of the convention, without examining it on all its sides, comparing it in all its parts, and calculating its probable effects.
My knowledge of com- parative physiology is confined to a book or two, but it seems to me that Carver's suggestions as to the reason of the rapid death of the Martians is so probable as to be regarded almost as a proven conclusion.

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