public final class BinomialDistribution extends ProbabilityDistribution
Constructor and Description |
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BinomialDistribution(int trials,
double prob)
Constructs a binomial distribution.
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Modifier and Type | Method and Description |
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double |
cumulative(double X)
Cumulative binomial distribution function.
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double |
getMean()
Returns the mean.
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double |
getProbabilityParameter()
Returns the probability.
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int |
getTrialsParameter()
Returns the number of trials.
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double |
getVariance()
Returns the variance.
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double |
inverse(double probability)
Inverse of the cumulative binomial distribution function.
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double |
probability(double X)
Probability density function of a binomial distribution.
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checkRange, checkRange, findRoot
public BinomialDistribution(int trials, double prob)
trials
- the number of trials.prob
- the probability.public int getTrialsParameter()
public double getProbabilityParameter()
public double getMean()
public double getVariance()
public double probability(double X)
probability
in class ProbabilityDistribution
X
- should be integer-valued.public double cumulative(double X)
cumulative
in class ProbabilityDistribution
X
- should be integer-valued.public double inverse(double probability)
inverse
in class ProbabilityDistribution