(PECL stats >= 1.0.0) Returns the population variance
(PECL stats >= 1.0.0) Generates random deviate from the distribution of a chisquare with "df" degrees of
(PECL stats >= 1.0.0) Not documented float
(PECL stats >= 1.0.0) Calculates any one parameter of the noncentral t distribution give values for the others
(PECL stats >= 1.0.0) float stats_stat_innerproduct ( array $arr1, array $arr2 )
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