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degrees of freedom (Definition)

The number of degrees of freedom of a distribution is the number of parameters that are used to calculate the value of the distribution and are either known or assumed to be independent.

The following use degrees of freedom:

Remark: The number of degrees of freedom has also a physical meaning related to the possible directions of motion of the system.




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Cross-references: t distribution, non-central chi-squared random variable, F distribution, chi-squared statistic, chi-squared random variable, independent, parameters, number
There are 22 references to this entry.

This is version 4 of degrees of freedom, born on 2007-06-01, modified 2008-10-19.
Object id is 9497, canonical name is DegreesOfFreedom.
Accessed 3106 times total.

Classification:
AMS MSC60E05 (Probability theory and stochastic processes :: Distribution theory :: Distributions: general theory)
 62A01 (Statistics :: Foundational and philosophical topics)

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