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In probability and statistics, the inverse-chi-squared distribution (or inverted-chi-square distribution) is a continuous probability distribution of a positive-valued random variable. It is closely related to the chi-squared distribution. It arises in Bayesian inference, where it can be used as the prior and posterior distribution for an unknown variance of the normal distribution.

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  • In probability and statistics, the inverse-chi-squared distribution (or inverted-chi-square distribution) is a continuous probability distribution of a positive-valued random variable. It is closely related to the chi-squared distribution. It arises in Bayesian inference, where it can be used as the prior and posterior distribution for an unknown variance of the normal distribution. (en)
  • En théorie des probabilités et en statistique, la loi inverse- (ou loi du inverse) est la loi de probabilité de la variable aléatoire dont l'inverse suit une loi du χ². Une variante par changement d'échelle existe également. Cette loi est utilisée en inférence statistique. Si X suit une loi inverse-χ2, on notera : . (fr)
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  • Inverse-chi-squared (en)
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  • In probability and statistics, the inverse-chi-squared distribution (or inverted-chi-square distribution) is a continuous probability distribution of a positive-valued random variable. It is closely related to the chi-squared distribution. It arises in Bayesian inference, where it can be used as the prior and posterior distribution for an unknown variance of the normal distribution. (en)
  • En théorie des probabilités et en statistique, la loi inverse- (ou loi du inverse) est la loi de probabilité de la variable aléatoire dont l'inverse suit une loi du χ². Une variante par changement d'échelle existe également. Cette loi est utilisée en inférence statistique. Si X suit une loi inverse-χ2, on notera : . (fr)
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  • Loi inverse-χ² (fr)
  • Inverse-chi-squared distribution (en)
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