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stats_dens_pmf_negative_binomial

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stats_dens_pmf_negative_binomialProbability density function of the negative binomial distribution

Description

float stats_dens_pmf_negative_binomial ( float $x , float $n , float $pi )

Returns the probability density at x, where the random variable follows the negative binomial distribution of which the number of the success is n and the success rate is pi.

Parameters

x

The value at which the probability density is calculated

n

The number of the success of the distribution

pi

The success rate of the distribution

Return Values

The probability density at x or FALSE for failure.

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