【random_samples】什么意思_英语random_samples的翻译_音标_读音_用法_例句_在线翻译

random sample

随机抽样

(1)随机抽样 ( Random Samples)是指对数据流进行周期区间随机取样,从数据集中随机抽取一小部分数据作为整个数据集的样本,根据该样本集合获得近似查询结果。

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n.
- a sample in which every element in the population has an equal chance of being selected
- a sample grabbed at random

以上来源于: WordNet

The research involves collecting data from two random samples.

该研究包括从两个随机的样本中收集数据。

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Some retailers pull 3-4 random samples from each product group.

一些零售商随机从每批产品中抽取3-4 件样品。

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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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更多双语例句

Random samples of German cockroaches, the common household variety, have turned up some that are resistant to almost all known insecticides, including DDT.

FORBES: Digital Rules
In fact, it has long been known that exit polls, though they may claim to be based on random samples, suffer from biases in the way that they are conducted.

ECONOMIST: How to detect voting fiddles
U.S. Department of Agriculture inspectors are stationed at every U.S. meatpacking plant, where they look for signs of illness upon entry, conduct random samples to detect whether the meat contains antibiotics and where they inspect the organs and skin of the slaughtered pigs for disease.

WSJ: What China Can Learn From America's Hot Dogs

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