stratified sample 中文意思是什麼
stratified sample
解釋
分層樣本- stratified : 層化的
- 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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This would be an example of a stratified sample.
這就是一個典型抽樣的例子。 -
Professor shi investigated the features of peoples perception of sars, including both positive and irrational responses, by surveying a stratified sample of 4, 231 people from 17 mainland cities. the research also proposed a predictive model on public socio - psychological behaviour centred around risk perception during a crisis
該研究調查了內地17個城市的4 ， 231名市民對沙士疫情信息認知的理性和非理性特徵，初步建立了內地民眾在沙士期間的心理行為預測模型。 -
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。 -
A stratified sample method of scattering source for time - dependent monte carlo transport
非定常粒子輸運蒙特卡羅散射源分層抽樣方法 -
Application of sample element method to determination of mechanical parameters of stratified crack rock mass
樣本單元法及層狀含裂隙巖體力學參數的確定 -
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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