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机械抽样
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机械抽样
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systematic sampling
机械抽样
把含有个单元的总体按一定顺序排列单元,然后随机确定并抽取起始单元,再按一套规则抽取其他样本单元组成样本,用以估计总体的抽样方法。又称系统随机抽样、规律性抽样。
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mechanical sampling
机械抽样
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