(PECL stats >= 1.0.0)
stats_rand_gen_ibinomial — Generates a random deviate from the binomial distribution
stats_rand_gen_ibinomial ( int $n , float $pp ) : int
Returns a random deviate from the binomial distribution whose number of trials is n and whose probability of an event in each trial is pp.
n
The number of trials
pp
The probability of an event in each trial
A random deviate
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https://www.php.net/manual/en/function.stats-rand-gen-ibinomial.php