分层抽样

Cluster sampling

群集抽样

6.群集抽样(Cluster Sampling)在本法抽样是以随机选出一群,一群为单位,不是个别单位. 群集抽样之优点简便易行,经济省事. 但是易产生抽样误差危险性很大. 分层之基础有赖抽样设计者之经验及判断. 理想上分层之数目愈多愈好. 因为层数愈多,

stratified cluster sampling

分层群聚抽样

抽后分层 stratification after selection | 分层群聚抽样 stratified cluster sampling | 分层多段抽样 stratified multiple stage sampling

stratified cluster sampling

分层集合体抽样,分层整群抽样

stratified clot 层状血块 | stratified cluster sampling 分层集合体抽样,分层整群抽样 | stratified coal seam sample 分层煤样

Stratification, multiple

复分层

Stratification 分层 | Stratification, multiple 复分层 | Stratified multiple stage sampling 多次分层抽样

stratified proportional sampling

分层比例抽样

stratified plastics 层压塑料 | stratified proportional sampling 分层比例抽样 | stratified random sampling method 分层随机抽样法

quota sampling

定额抽样

(一) 课本在非机率抽样的类型中,有提到定额抽样(quota sampling),简单的说,其是先将母体的特徵列表,再依母题这些特徵的不同比例,依序抽出样本,使样本和母题具有同样特徵,以增加代表性,而此种抽样方法,和机率抽样中的分层抽样(stratified sampling),

Simple locatedom sampling

简单随机抽样法

随机抽样 : Rborderom sampling | 简单随机抽样法 : Simple locatedom sampling | 分层抽样法 : Stratified sampling

stratified sample

分层样本

Stratified random sampling 分层随机抽样 | Stratified sample 分层样本 | Stratified sampling 分层抽样

stratified mass selection

分层群选

stratified epithelium 复层上皮 | stratified mass selection 分层群选 | stratified sampling 分层抽样

stratified subsampling method

分层分阶抽样法

11530,"stratified sampling","分层抽样" | 11531,"stratified subsampling method","分层分阶抽样法" | 11532,"stratum","[阶]层"

barehanded fighting：徒手格斗

最輕量級 bantamweight | 徒手格斗 barehanded fighting | 基本防守動作 basic defense movement

The Unsaid：生死真相

PRETTY WOMAN 风月俏佳人 | THE UNSAID 生死真相 | FULL METAL JACKET 全金属外壳