stratified sample [统计] 分层样本 ; 分层抽样 ; 分层取样 ; 分层样品
non-stratified sample [统计] 非分层样本 ; 不分层样本
post stratified sample 事后分层抽样
disproportionate stratified sample 非比例的分层样本
randomly stratified sample 随机分层抽样
stratified sample with unequal probabitities 分层不等概抽样
stratified random sample 分层随机样本 ; 分层随机抽样
stratified purposive sample 分层立意样本 ; 分层蓄意样本
Methods: Stratified random cluster sampling method was used to determine the survey sample.
方法：以分层随机整群抽样的方法，确定调查样本。
Methods Random sample were obtained from the whole population by multiple stratified cluster and 1 320 objects were surveyed in their own homes by questionnaires.
方法采用多阶段整群抽样和配额抽样相结合的方法，对深圳市1 320名居民进行入户问卷调查。
The paper presents a typical self-weighting sample design for the stratified three-stage or over sampling.
本文提出了分层三阶段及以上抽样的自加权抽样设计方法。
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