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关注：1
2013-05-23 12:21
求翻译：按照年龄、性别等进行分层整群抽样是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
按照年龄、性别等进行分层整群抽样
问题补充： |
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2013-05-23 12:21:38
By age, gender stratified cluster sampling
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2013-05-23 12:23:18
according to age, gender, etc. stratified sampling whole groups
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2013-05-23 12:24:58
According to the age, the sex and so on carry on the lamination group sampling
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2013-05-23 12:26:38
According to age, gender, stratified cluster sampling
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2013-05-23 12:28:18
According to age, gender, stratified cluster sampling
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