英语词汇stratified sample怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	stratified sample
释义	stratified sample noun Statistics a sample that is drawn from a number of separate strata of the population, rather than at random from the whole population, in order that it should be representative 【统计】分层样本。
随便看	supersonic supersonically supersonics superspace superspecies superstar superstardom superstate superstation superstition superstitious superstitiously superstitiousness superstore superstratum superstring superstructural superstructure supersymmetric supersymmetry supertanker supertax supertitle supertonic Super Tuesday

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