org.apache.commons.math3.distribution
Interfaces 
IntegerDistribution
RealDistribution
Classes 
AbstractIntegerDistribution
AbstractRealDistribution
BetaDistribution
BinomialDistribution
CauchyDistribution
ChiSquaredDistribution
ExponentialDistribution
FDistribution
GammaDistribution
HypergeometricDistribution
KolmogorovSmirnovDistribution
LogNormalDistribution
NormalDistribution
PascalDistribution
PoissonDistribution
SaddlePointExpansion
TDistribution
TriangularDistribution
UniformIntegerDistribution
UniformRealDistribution
WeibullDistribution
ZipfDistribution