Probability

Probability is a measure of the expectation that an event will occur or a statement is true. Probabilities are given a value between 0 (will not occur) and 1 (will occur). The higher the probability of an event, the more certain we are that the event will occur.

The concept has been given an axiomatic mathematical derivation in probability theory, which is used widely in such areas of study as mathematics, statistics, finance, gambling, science, artificial intelligence/machine learning and philosophy to, for example, draw inferences about the expected frequency of events. Probability theory is also used to describe the underlying mechanics and regularities of complex systems.

Read more about ProbabilityInterpretations, Etymology, History, Theory, Applications, Mathematical Treatment, Relation To Randomness

Other articles related to "probability":

Confidence Interval - Statistical Theory - Definition
... Let X be a random sample from a probability distribution with statistical parameters θ, which is a quantity to be estimated, and φ, representing ... Here Prθ,φ indicates the probability distribution of X characterised by (θ, φ) ... the random interval (u(X), v(X)) covers the unknown value θ with a high probability no matter what the true value of θ actually is ...
List Of Lithuanians - Science - Mathematics
... Aleškevičienė (Statulevičienė) – Probability theory and stochastic processes Raimundas Bentkus – Probability theory and stochastic processes Vidmantas Bentkus – Probability theory, functional analysis ... Paulauskas – Probability theory and stochastic processes Vytautas Statulevicius – Probability theory and stochastic processes Donatas Surgailis – Probability theory and stochastic ...
Triangular Distribution
... In probability theory and statistics, the triangular distribution is a continuous probability distribution with lower limit a, upper limit b and mode c, where a < b and a ≤ c ≤ b ... The probability density function is given by whose cases avoid division by zero if c = a or c = b ...
Marilyn Vos Savant - Errors in The Column
... Obviously, the probability of an employee being chosen in one quarter is 25 percent ... Marilyn's response was The probability remains 25 percent, despite the repeated testing ... but as long as the size of the pool remains the same, so does the probability ...
Probability - Relation To Randomness
... In a deterministic universe, based on Newtonian concepts, there would be no probability if all conditions are known, (Laplace's demon) ... Probability theory is required to describe quantum phenomena ...

Famous quotes containing the word probability:

    Only in Britain could it be thought a defect to be “too clever by half.” The probability is that too many people are too stupid by three-quarters.
    John Major (b. 1943)

    Legends of prediction are common throughout the whole Household of Man. Gods speak, spirits speak, computers speak. Oracular ambiguity or statistical probability provides loopholes, and discrepancies are expunged by Faith.
    Ursula K. Le Guin (b. 1929)

    Crushed to earth and rising again is an author’s gymnastic. Once he fails to struggle to his feet and grab his pen, he will contemplate a fact he should never permit himself to face: that in all probability books have been written, are being written, will be written, better than anything he has done, is doing, or will do.
    Fannie Hurst (1889–1968)