求翻译：当均值与方差近似相等时适合选用泊松模型；当分布比较离散时，适宜选择负二项或零堆积泊松模型；当事故数据体现出较多的零值时，应选择零堆积泊松模型。是什么意思？

Poisson model suitable for use when the mean and variance are approximately equal; when the distribution of relatively discrete, appropriate choice of the negative binomial or zero accumulation Poisson model; when the accident data reflect more of a value of zero, zero accumulation of the Poisson mo

When you are approximate values and the variance is the same used for Poisson model; when more discrete, appropriate choice for 2 or 0 stacked Poisson model data; when the incident reflects a larger number of zero value, you should choose zero stacked Poisson model.

When average value and variance approximately equal selects the Poisson model suitably; When distributes quite separate, the suitable choice negative binomial or the zero pile up the Poisson model; When the accident data manifests the many zero value, should choose the zero to pile up the Poisson mo

When the mean value and variance equal selection for Poisson models; when when you compare discrete distributions, suitable for select negative binomial or Poisson zeros stacked model; when the accident data reflects more a value of zero, zero stacked Poisson model should be selected.

正在翻译，请等待...