negativeBinomial
Probability mass function |

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Distribution |

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Mean |

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Variance |

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The Negative Binomial distribution is a discrete distribution
bounded
on the low side at 0 and unbounded on the high side. The Negative
Binomial distribution gives the number of failures before the nth success in a sequence of independent Bernoulli trials with probability p of success on each trial.
The Negative Binomial distribution has many uses; some occur because it
provides a good approximation for the sum or mixing of other discrete
distributions. By itself, it is used to model accident statistics,
birth-and-death processes, market research and consumer expenditure,
lending library data, biometrical data, and many others.
Samples

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negativeBinomial(double
p, double n)
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Description
Generates a sample of the Negative Binomial distribution.
Parameters
Name |
Type |
Description |
p |
double |
probability of success on each trial |
n |
double |
number of desired successes |
Result
Type |
Description |
double |
the
generated sample |
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negativeBinomial(double
p,
double n, java.util.Random r)
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Description
Generates a sample of the Negative Binomial
distribution using the
specified random number generator.
Parameters
Name |
Type |
Description |
p |
double |
probability of success on each trial |
n |
double |
number of desired successes |
r |
java.util.Random |
the random
number generator |
Result
Type |
Description |
double |
the
generated sample |