When these conditions are met, elegant mathematical results offer provable guarantees about a researcher's ability to use the sample to make inferences about the target population.
Uma lezi zimo zifinyelelwa, imiphumela enhle yemathempi inikezela ngokuqinisekisayo ukuthi ikhono lomcwaningi lokusebenzisa isampula ukwenza izinkomba mayelana nabantu abathintekayo.