词语成层抽样
解释stratified sampling
stratified sampling〔名词〕分层取样,分层抽样详细»
stratified sampling分层采样详细»
stratified sampling〔名词〕分层取样详细»
stratified sampling分层采样,分层抽样详细»
stratified sampling〔名词〕成层抽样详细»
成层抽样stratified sampling详细»