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关注：1
2013-05-23 12:21
求翻译：是指调查人员将调查总体样本按一定标志分类或分层，确定各类（层）单位的样本数额，在配额内任意抽选样本的抽样方式。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
是指调查人员将调查总体样本按一定标志分类或分层，确定各类（层）单位的样本数额，在配额内任意抽选样本的抽样方式。
问题补充： |
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2013-05-23 12:21:38
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2013-05-23 12:23:18
Refers to the investigators will investigate overall sample at a certain flag or hierarchical classification, identifying various units (Tier), Sample within quota sample sample sampling arbitrary manner.
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2013-05-23 12:24:58
Will be refers to the investigator to investigate the overall sample according to certain symbol classification or the lamination, determined each kind (level) unit's sample amount, will sample the sample willfully in the quota the sampling way.
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2013-05-23 12:26:38
Means investigators will examine population classified by certain signs or hierarchical, determine (layer) unit amount of samples, sample, selected at random in the quota sampling method.
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2013-05-23 12:28:18
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