note 123960 added to function.stats-dens-pmf-hypergeometric
| From: | brendan at gamblingtec dot com | Date: | Wed, 19 Jun 2019 13:11:08 +0000 |
| Subject: | note 123960 added to function.stats-dens-pmf-hypergeometric | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-211314@lists.php.net to get a copy of this message | ||
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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Server IP: 208.43.231.9
Probable Submitter: 82.199.130.26 (proxied: 197.87.63.161)
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Manual Page -- http://php.net/manual/en/function.stats-dens-pmf-hypergeometric.php
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