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Keyword [stratified sampling]
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1. The Research On Neural Network Ensemble And Application In The Classification Of Cancer
2. Statistical Methods For Qualitative Sensitive Questions Survey In Stratified Sampling And Its Application
3. Stratified Sampling Study Of Oncomelania Space Based On Auxiliary Variable And Neyman Allocation
4. Study On Basic Public Health Service Of Primary Medical And Health Care Institutions In L District
5. Research On The Present Situation And Optimal Countermeasures Of Health Supervision System Construction In Jiangsu Province
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