In the measurement of low-level radioactivity, instead of Poissondistribution, a negative binomial distribution is proposed to denote the probability distribution of actual counts.
在低水平放射性测量中，建议采用负二项式分布代替泊松分布来描述真实测量计数的几率分布。
2
Poisson theorem and De Moivre-Laplace theorem present the approximate calculation formula of binomialdistribution.
泊松定理、隶莫佛-拉普拉斯定理给出了二项分布的近似计算公式。
3
The results indicate that both binomialdistribution and Poisson distribution well fit the statistic characteristics of sea spike under lower false-alarm probability.