cluster random sampling

短语词组

短语

• cluster systematic random sampling method 束系统随机抽样方法
• Stratified cluster random sampling 分层整群随机抽样
• cluster random sampling method 整群随机抽样方法
• multi -stage random cluster sampling 群抽样
• random cluster sampling 整群抽样
• stratified random cluster sampling 群分层随机抽样
• random and cluster sampling 随机整群抽样
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