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probability meaning

[ ˌprɔbə'biliti ] Pronunciation:   "probability" in a sentence
  • Noun: probability  `próbu'bilitee
    1. A measure of how likely it is that some event will occur; a number expressing the ratio of favourable cases to the whole number of cases possible
      "the probability that an unbiased coin will fall with the head up is 0.5"
      - chance 
    2. The quality of being probable; a probable event or the most probable event
      "for a while mutiny seemed a probability"; "going by past experience there was a high probability that the visitors were lost"

    Derived forms: probabilities

    See also: probabilistic, probable

    Type of: amount, measure, quality, quantity

    Antonym: improbability

    Encyclopedia: Probability


  • [Economics]
    The likelihood that an event or a particular result will occur. It can be represented on a scale by a number between 0 (zero probability of the event happening, i.e. it is certain not to) and 1 (certainty that it will occur). It is treated mathematically on this basis in statistics.

  • [Electronics]
    1. The branch of mathematics concerned with the likelihood of an event’s occurrence. It has many applications in quality control and physics.
    2. The mathematical likelihood that an event will occur.

  • [Finance]
    The relative likelihood of a particular outcome among all possible outcomes.

  • [Medicine]
    The study of chance processes or the relative frequency characterizing a chance process.

Examples

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  1. what is the probability that it is a prime?
  2. a higher probability means more confidence.
  3. a probability of 1 represents certainty.
  4. this is often quoted above of 67% probability.
  5. in all probability he is already left.

Related Words

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