【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 evaluation studied 166 of Rwanda's 401 primary care facilities over a 2-year period; its findings were based on random samples of 13 households living in local areas served by the clinics.

这项评估在两年的时间里研究了卢旺达401个初级服务机构中的166个机构。它的结论是根据13个随机抽样、居住在卫生所服务覆盖地区的当地家庭做出的。

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The field of capture-recapture and removal is an important direction of mathematical statistics, which studies the estimation of the sizes of finite populations from incomplete random samples.

捕获再捕获与捕获移出研究是数理统计的一个重要方向，它研究如何利用随机样本估计有限群体的总体数目。

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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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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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