题目内容
四种基本的概率抽样方法为
2021-10-11
A.系统抽样、整群抽样、偶遇抽样、单纯随机抽样
B.单阶段抽样、多阶段抽样、雪球抽样、便利抽样
C.单纯随机抽样、分层抽样、整群抽样、配额抽样
D.单纯随机抽样、分层抽样、系统抽样、整群抽样
E.多阶段抽样、分层抽样、系统抽样、机械抽样
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