| 单词 | quota sample | 
| 释义 | > as lemmasquota sample   quota sample  n. Statistics a sample obtained in quota sampling. ΘΚΠ the world > relative properties > number > probability or statistics > 			[noun]		 > sample sample1903 probability sample1947 quota sample1948 1948    H. Cantril in  E. G. Boring et al.  Found. Psychol. xxiv. 579  				We have, then six ‘controls’ in determining this quota sample: section of the country, rural-urban distribution within each section, income distribution, race.., sex and age. 1974    Times 15 Feb. 5/7  				The Gallop Poll..plans to do a mixture of random and quota samples. 1995    Science 7 July 41/3  				Test norming samples..are typically large and broad-based. But they are usually quota samples and are almost never nationally representative. < as lemmas  | 
	
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