Sebaran binomial négatip: Béda antarrépisi

 

* The '''negative binomial distribution''' is the probability distribution of the number of [[statistical independence|independent]] [[Bernoulli trial]]s needed to get a fixed number ''r'' of "successses" (see also [[Bernoulli process]].); or

* The '''negative binomial distribution''' is the probability distribution of the number of "failures" in [[statistical independence|independent]] [[Bernoulli trial]]s ''before'' the ''r''th "success" (see also [[Bernoulli process]]).

* A third convention will be explained below. The third convention generalizes the second one, rather than actually conflicting with it. It allows ''r'' to be a non-integer.

 

in which the upper bound of summation is infinite. If the [[binomial coefficient]] is defined by

 

 

then it does not make sense when ''x'' > ''n'', since [[factorial]]s of negative numbers are not defined. But one may also read it as

Moral: Negative binomial distributions don't turn our children out on the streets; bad [[parenting]] does.

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[[Kategori:Sebaran probabilitas]]