stratified random sample 中文意思是什麼
stratified random sample
解釋
分層隨機樣本- stratified : 層化的
- random : n 〈罕用語〉胡亂行為，偶然的[隨便的]行動[過程]。adj 1 任意的，胡亂的，隨便的；（話等）信口亂說的...
- sample : n 1 樣品，貨樣。2 標本；榜樣，實例。3 【統計】典型取樣，抽檢查。4 【電訊】信號瞬時值。5 【冶金】 ...
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Through questionnaire, we know the present situation of secondary school teachers ' understanding of self - regulated learning, and give our solutions on these questions. to make the investigation representative, this research adopts the way of the stratified random sample and in the three different levels of schools in the whole city - high quality, medium quality, low quality
為保證調查取樣的代表性，本研究採用分層隨機抽樣法，即按照重點學校和非重點學校，非重點學校又分為較好的學校和較差的學校的標準，在全市中學中隨機抽取300名一線教師，進行實測。 -
The paper analyses the survey data about stratified random sample of 70 villages in shandong province by qualitatively and quantitatively
摘要20世紀90年代以來，中國農業生產結構發生了巨大的變化，但人們對農戶種植結構調整的主要影響因素有顯著的不同看法。 -
Methods a stratified random cluster sample of 17269 students in china were investigated with the children and adolescents ' qol scale according to the census data in 2000, and the urban and country norm of the scale were respectively established
方法依據2005年第5次全國人口普查資料，在全國進行多階段分層整群抽樣，分別建立城市和農村2套常模。
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