It may determine whether one should choose nonprobability sampling or probability sampling.
它可以决定一个人应该选择非概率抽样还是概率抽样。
The result showed that the root-mean-square of Phase function fitted by random probability sampling method is smaller.
结果显示随机概率抽样方法拟合的相函数与散射相函数间的方均根差更小。
Fixed probability sampling is the simplest technique for detecting bigger traffic flows while discarding the smaller ones which consist almost more than 80% of the count of whole traffic flows.
最简单的固定概率采样能监测较大业务流，但往往忽略掉比例几乎超过80%的较小业务流。
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