Stratification of Sample by Economic Region
The sample was stratified into four prominent economic regions, namely Eastern, Central, Western, and Northeastern, for analytical purposes.
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The sample was stratified into four prominent economic regions, namely Eastern, Central, Western, and Northeastern, for analytical purposes.
原文地址: https://www.cveoy.top/t/topic/kyDN 著作权归作者所有。请勿转载和采集!