ポアソン分布
Moreover, if formula_18, we say formula_19 has a discrete compound Poisson distribution of order formula_20 . When formula_21, DCP becomes Poisson distribution and Hermite distribution, respectively. When formula_22, DCP becomes triple stuttering-Poisson distribution and quadruple stuttering-Poisson distribution, respectively. Other special cases include: shiftgeometric distribution, negative binomial distribution, Geometric Poisson distribution, Neyman type A distribution, Luria–Delbrück distribution in Luria–Delbrück experiment. For more special case of DCP, see the reviews paper and references therein.