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将人口总体顺序编号,用等距法,每隔一定间隔抽出一人为样本,这种抽样方法叫( )。

单选题
2021-07-17 22:46
A、间隔随机抽样
B、分层随机抽样
C、分区多级随机抽样
D、分层异比抽样
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正确答案
A

试题解析

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