(PECL stats >= 1.0.0) Returns the population variance

(PECL stats >= 1.0.0) Generates a single random deviate from a negative binomial distribution. Arguments

(PECL stats >= 1.0.0) Not documented float

(PECL stats >= 1.0.0) generate two seeds for the RGN random number generator

(PECL stats >= 1.0.0) Generates a single random deviate from a T distribution

(PECL stats >= 1.0.0) Generates random deviates from a gamma distribution

(PECL stats >= 1.0.0) Returns the standard deviation

(PECL stats >= 1.0.0) Calculates any one parameter of the binomial distribution given values for the others

(PECL stats >= 1.0.0) Returns the absolute deviation of an array of values

(PECL stats >= 1.0.0) Generates a single random deviate from a Poisson distribution with mean "mu" (mu >=