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Definition of probability noun from the Oxford Advanced Learner's Dictionary

probability

noun
 
/ˌprɒbəˈbɪləti/
 
/ˌprɑːbəˈbɪləti/
(plural probabilities)
Idioms
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  1. [uncountable, countable] how likely something is to happen synonym likelihood
    • The probability is that prices will rise rapidly.
    • There seemed to be a high probability of success.
    Extra Examples
    • We can say with a high degree of probability that the poem was written by Shakespeare.
    • genetic factors that influence the probability of developing cancer
    • measures to increase the probability for a sustained recovery
    Topics Doubt, guessing and certaintyb2
    Oxford Collocations Dictionaryadjective
    • high
    • real
    • strong
    … of probability
    • degree
    verb + probability
    • have
    • increase
    • decrease
    preposition
    • probability for
    • probability of
    phrases
    • in all probability
    • on a/​the balance of probabilities
    See full entry
  2. [countable] a thing that is likely to happen
    • A fall in interest rates is a strong probability in the present economic climate.
    • It now seems a probability rather than just a possibility.
  3. [countable, uncountable] (mathematics) a ratio showing the chances that a particular thing will happen
    • There is a 60 per cent probability that the population will be infected with the disease.
    Topics Maths and measurementb2
  4. Word Originlate Middle English: from Latin probabilitas, from probabilis ‘provable, credible’, from probare ‘to test, demonstrate’.
Idioms
(on) the balance of evidence/probability
  1. (formal) (considering) the evidence on both sides of an argument, to find the most likely reason for or result of something
    • The balance of evidence suggests the Liberal party's decline began before the First World War.
    • The coroner thought that on the balance of probabilities, the pilot had suffered a stroke just before the crash.
    Topics Opinion and argumentc2
(on) the balance of probability/evidence
  1. (formal) (considering) the evidence on both sides of an argument, to find the most likely reason for or result of something
    • The coroner thought that on the balance of probabilities, the pilot had suffered a stroke just before the crash.
in all probability…
  1. it is very likely that
    • In all probability he failed to understand the consequences of his actions.
    • In all probability she wouldn't come even if we invited her.
See probability in the Oxford Advanced American DictionarySee probability in the Oxford Learner's Dictionary of Academic English
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adjective
 
 
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