stats_dens_pmf_binomial

(PECL stats >= 1.0.0)

stats_dens_pmf_binomial — Probability mass function of the binomial distribution

説明

stats_dens_pmf_binomial(float $x, float $n, float $pi): float

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

パラメータ

x: The value at which the probability mass is calculated
n: The number of trials of the distribution
pi: The success rate of the distribution

戻り値

The probability mass at x or false for failure.

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