stratified purposive sampling

网络释义

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2.	分层立意抽样统计学词汇S-19... ... 分层立意抽样 stratified purposive sampling 分层随机样本 stratified random sample ... www.scientrans.com
3.	分层立意样本品质名词 -... ... Stratified purposive sampling 分层立意样本 Stratified random sample 分层随机样本 ... zhu888418.blog.163.com