Qhov twg siv quota sampling?

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Qhov twg siv quota sampling?
Qhov twg siv quota sampling?

Video: Qhov twg siv quota sampling?

Video: Qhov twg siv quota sampling?
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Quota sampling yog qhov muaj txiaj ntsig zoo thaum lub sijhawm los ua daim ntawv ntsuam xyuas raug txwv, cov peev nyiaj tshawb fawb nruj heev, lossis qhov tseeb qhov kev tshawb fawb tsis yog qhov tseem ceeb. Piv txwv li, cov neeg xam phaj haujlwm nrog lub sijhawm txwv los ntiavhom tshwj xeeb ntawm cov tib neeg tuaj yeem siv quota sampling.

Vim li cas peb thiaj li siv cov quota sampling?

Qhov laj thawj tseem ceeb vim li cas cov kws tshawb fawb xaiv cov qauv quota yog nws tso cai rau cov kws tshawb fawb los ua piv txwv cov pab pawg uas muaj kev txaus siab rau txoj kev kawmYog txoj kev tshawb fawb los tshawb xyuas qhov zoo lossis ib tug yam ntxwv ntawm ib pawg sub, hom qauv no yog cov txheej txheem zoo tagnrho.

Qhov twg hauv qab no yog ib qho piv txwv ntawm quota sampling?

Piv txwv li, ib lub tuam txhab luam yeeb xav paub seb cov hnub nyoog twg nyiam hom luam yeeb hauv ib lub nroog twg Nws siv quotas rau cov hnub nyoog ntawm 21-30, 31-40, 41-50, thiab 51+. Los ntawm cov ntaub ntawv no, tus kws tshawb fawb ntsuas qhov kev haus luam yeeb ntawm cov pej xeem hauv nroog.

Ib co piv txwv ntawm quota yog dab tsi?

A quota yog hom kev txwv kev lag luam uas tsoomfwv txwv cov lej lossis tus nqi ntawm cov khoom lag luam uas lwm lub tebchaws tuaj yeem tuaj yeem. Piv txwv li, tsoomfwv yuav tso cov quota txwv ib lub tebchaws nyob sib ze kom tuaj yeem tsis pub tshaj 10 tons ntawm nplej.

Peb tuaj yeem siv qhov piv txwv yooj yim nyob qhov twg?

Ib qho piv txwv yooj yim ntawm txoj kev sim ua kom yooj yim yog thaum cov tuam txhab faib lawv cov ntawv tshaj tawm thiab nug cov lus nug ntawm lub khw lossis ntawm txoj kev muaj neeg coob coob nrog cov neeg tuaj koom xaivCov lag luam siv txoj kev ntsuas no los sau cov ntaub ntawv los daws cov teeb meem tseem ceeb tshwm sim los ntawm kev ua lag luam.

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