PHP 8.4.2 Released!

    stats_dens_pmf_poisson

    (PECL stats >= 1.0.0)

    stats_dens_pmf_poisson — Probability mass function of the Poisson distribution

    Description

    stats_dens_pmf_poisson(float $x, float $lb): float

    Returns the probability mass at x, where the random variable follows the Poisson distribution whose parameter is lb.

    Parameters

    x

    The value at which the probability mass is calculated

    lb

    The parameter of the Poisson distribution

    Return Values

    The probability mass at x or false for failure.

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top