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关注：1
2013-05-23 12:21
求翻译：采取随机抽样方式，对花坛社区居民500人进行问卷调查与统计分析，其中有效问卷480份。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
采取随机抽样方式，对花坛社区居民500人进行问卷调查与统计分析，其中有效问卷480份。
问题补充： |
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2013-05-23 12:21:38
Take a random sample of questionnaires and statistical analysis of the flower beds and 500 community residents, of which 480 valid questionnaires.
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2013-05-23 12:23:18
Take random and 500 residents of a community of flower beds were conducted a questionnaire survey and statistical analysis, of which 480 valid questionnaires.
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2013-05-23 12:24:58
Adopts the random sampling way, carries on the questionnaire survey and the statistical analysis to the flower-bed community inhabitant 500 people, in which effective questionnaire 480.
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2013-05-23 12:26:38
Taken at random, for flower communities statistical analysis of questionnaire survey of 500 people, of which 480 effective questionnaire.
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2013-05-23 12:28:18
正在翻译，请等待...
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