Keywords

#sufficient_statistic

Sufficient statistic

Statistical principle

In statistics, sufficiency is a property of a statistic computed on a sample dataset in relation to a parametric model of the dataset. A sufficient statistic contains all of the information that the dataset provides about the model parameters. It is closely related to the concepts of an ancillary statistic which contains no information about the model parameters, and of a complete statistic which only contains information about the parameters and no ancillary information.

Fri 13th

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Sufficient statistic Ancillary statistic Exponential family Completeness (statistics) Lehmann–Scheffé theorem Rao–Blackwell theorem Basu's theorem Kolmogorov structure function Fisher information Statistical hypothesis test
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