cluster sample

a method of SAMPLING which selects from groups (clusters) existing in the parent population, rather than assembling a RANDOM SAMPLE. This tends to be quicker and cheaper, but may lead to a BIASED SAMPLE if the clusters are not representative of the parent population. For example, polls taken of attitudes to government policy may be carried out in selected areas of the country thought to be representative, but, because of local political dynamics, this may not be the case.

单词	cluster sample
释义	cluster sample cluster sample a method of SAMPLING which selects from groups (clusters) existing in the parent population, rather than assembling a RANDOM SAMPLE. This tends to be quicker and cheaper, but may lead to a BIASED SAMPLE if the clusters are not representative of the parent population. For example, polls taken of attitudes to government policy may be carried out in selected areas of the country thought to be representative, but, because of local political dynamics, this may not be the case. cluster sample clus·ter sam·ple each sampling unit in a group of individuals.
随便看	disadvantaging disadventure disadventurous disadvise disae disaf disaffect disaffected disaffectedly disaffected mormon underground disaffectedness disaffected person disaffecting disaffection disaffectionate disaffections disaffects disaffiliate disaffiliated disaffiliates denver rotary club foundation denver & salt lake denversaurus denversaurus schlessmani denver scale

cluster sample

cluster sample

cluster sample

clus·ter sam·ple