quota sampling

常見(jiàn)例句

Objective To improve quota-sampling precision and reproducibility of the impedance blood rheometer.
目的：改進(jìn)電阻抗血液流變儀定量進(jìn)樣的精確度和重複性。
Method Purpose sampling combined with quota sampling were adopted, and the data of nursing quality assessment standards of 17 hospitals in China were obtained and analyzed.
結(jié)果各毉院評(píng)價(jià)標(biāo)準(zhǔn)所涉及的評(píng)價(jià)指標(biāo)不盡相同，同一指標(biāo)的評(píng)價(jià)標(biāo)準(zhǔn)條目設(shè)立、權(quán)重設(shè)定差異均較大，且尚無(wú)統(tǒng)一的計(jì)分方法。
Methods Through quota sampling, a total of 1280 migrants were recruited from 6 different venues where migrants were most likely employed to administer a face-to-face anonymous interview.
方法採(cǎi)用配額抽樣的方法，在市場(chǎng)、飯店、賓館等流動(dòng)人口較爲(wèi)集中的6類工作場(chǎng)所裡招募外來(lái)務(wù)工人員1280名，進(jìn)行匿名問(wèn)卷調(diào)查。

Using old-style quota sampling Gallup's polls had shown a Labour lead of 37 points.
ECONOMIST: Why the polls got it wrong last time
All the polling firms selected their samples using a technique known as quota sampling.
ECONOMIST: Why the polls got it wrong last time
The difference this new method can make was dramatically illustrated in January when Gallup made its switch from quota sampling.
ECONOMIST: Why the polls got it wrong last time