英语词汇“random sample”的翻译、意思、用法、释义-英汉经管词典

单词	random sample
释义	random sample A sample of a population, chosen by some method which ensures that every member of the population has an equal chance of being picked. A random sample is contrasted with a quota sample, where the aim is to have the same proportion of different types, for example of people grouped by age and sex, as in the overall population.
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