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Qu'est-ce (qui) est probability distribution - définition
Compound probability distribution
In probability and statistics, a compound probability distribution (also known as a mixture distribution or contagious distribution) is the probability distribution that results from assuming that a random variable is distributed according to some parametrized distribution, with (some of) the parameters of that distribution themselves being random variables.
Conditional probability distribution
![joint density]]](https://commons.wikimedia.org/wiki/Special:FilePath/Multivariate Gaussian.png?width=200 "joint density]]")
PROBABILITY DISTRIBUTION RESTRICTED TO A SUBSPACE OF THE SAMPLE SPACE, NORMALIZE TO A TOTAL PROBABILITY OF ONE
Conditional probability density function; Conditional distribution; Conditional probability function; Conditional density; Continuous conditional density; Conditional probability density
In probability theory and statistics, given two jointly distributed random variables X and Y, the conditional probability distribution of Y given X is the probability distribution of Y when X is known to be a particular value; in some cases the conditional probabilities may be expressed as functions containing the unspecified value x of X as a parameter. When both X and Y are categorical variables, a conditional probability table is typically used to represent the conditional probability.
Posterior probability
CONDITIONAL PROBABILITY DISTRIBUTION USED IN BAYESIAN STATISTICS
Posterior probability distribution; Posterior distribution; Posterior probabilities; Posterior probability density function; A posteriori distribution; Relative frequency probability
The posterior probability is a type of conditional probability that results from updating the prior probability with information summarized by the likelihood, through an application of Bayes' theorem. From an epistemological perspective, the posterior probability contains everything there is to know about an uncertain proposition (such as a scientific hypothesis, or parameter values), given prior knowledge and a mathematical model describing the observations available at a particular time.
Wikipédia
Probability distribution
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Exemples du corpus de texte pour probability distribution
1. In this case, the probability distribution included the possibility of deflation, which was, rightly, seen as a highly costly event.
2. Since one can never be sure of hitting a target, one must always take account of the probability distribution of – and costs associated with – the various outcomes.