“stratified sampling”的概念、定义、翻译、参考文献-科学参考

单词	stratified sampling
释义	stratified sampling [`strad·ǝ´fīd `sam·pliŋ] ^STATISTICS A random sample of specified size is drawn from each stratum of a population.
随便看	mixed bud mixed cloud mixed congruential generator mixed cryoglobulin mixed crystal mixed current mixed cycle mixed deafness mixed decimal mixed-entry decision table mixed flow mixed-flow fan mixed-flow impeller mixed forest mixed gland mixed highs mixed indicator mixed laterality mixed layer mixed-layer mineral mixed-mode expression mixed model mixed nerve mixed nucleus mixed number

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