One is to compare the sample mean and the sample variance.

当样本均值大于样本方差时，认为是服从二项分布；

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Populations, random samples. Sample statistics, moments of the sample mean and variance.

母体， 随机样本。 样本统计， 样本平均数和变异数的动差。

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We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念，取决于我们指的是，样本均值还是总体均值。

youdao

We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值

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Smaller sample sizes mean more random outcomes.

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So, although there have been controversial cases usually those that have ignored the fact that people from the same ethnic group share particular genetic signatures more often than people drawn at random from the population finding the right signatures in a sample generally does mean you're nicked.

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Where bills are higher, such as in the South West, they appear to be less keen - although the small sample sizes in these areas mean that the data needs to be treated with caution.

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