stratified cluster sampling

短语词组

短语

• stratified multistage cluster sampling 分层多级整群抽样
• stratified random cluster sampling 群分层随机抽样
• stratified and cluster sampling 采用分层整群抽样方法
• Stratified cluster random sampling 分层整群随机抽样
• stratified cluster sampling technique 分层抽样技术
• stratified cluster sampling method 分层整群抽样方法
• stratified sampling and cluster sampling 分层整群抽样
• stratified one stage cluster sampling 分层一级整群抽样
• stratified one -stage cluster sampling 分层单级整群抽样
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