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    stats_dens_pmf_hypergeometric

    (PECL stats >= 1.0.0)

    stats_dens_pmf_hypergeometric —

    설명

    float stats_dens_pmf_hypergeometric ( float $n1 , float $n2 , float $N1 , float $N2 )
    Warning

    이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

    인수

    n1

    n2

    N1

    N2

    반환값

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    User Contributed Notes 1 note

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    brendan at gamblingtec dot com
    5 years ago
    You can use this method to work out lottery odds:

    /**
    * N is the population size OR total balls in the lottery draw
    * K is the number of success states in the population OR the number of correct balls drawn from the pool
    * n is the number of draws OR the number of times we draw from the pool to get the winning numbers.
    */

    $N = 49; //Total balls in the pool
    $K = 1; //Successful matches to win

    $method = new Hypergeometric($N, $K, $K);
    $odds = $method->pmf($K);
           
    return 1/$odds;

    //Will return 49
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