multistage stratified random sampling

基本解釋

Multistage stratified random sampling was conducted an interview survey in status of illness for children under 2 years old.
採用多堦段分層隨機(jī)抽樣法對2嵗以下兒童進(jìn)行疾病狀況詢問調(diào)查。
Method A total of 4 882 undergraduates from 6 universities in Shanxi province was investigated with multistage stratified random cluster sampling.
方法採用多堦段分層隨機(jī)整群抽樣方法調(diào)查山西省普通高校一、二、三年級本?？拼髮W(xué)生4 882名。
We randomly selected 806 children under 6 years of age from 45 primary anganwadi (childcare) centres in Chandigarh, Punjab, India, that were chosen through multistage stratified random sampling.
在印度旁遮普省昌迪加爾的45所托兒所（anganwadi）中心採用多級分層隨機(jī)取樣法選擇了806名6嵗以下兒童。