... multistage stratified random sampling 多级分层随机抽样 stratified randomized sampling 随机分层抽样 stratified random sampling surveys 分层随机抽样调查 ...
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分层随机抽样法 [统计] stratified random sampling method ; Stratified random sampling
异比分层随机抽样 disproportionate stratified random sampling
多级分层随机抽样 [统计] multistage stratified random sampling
分层随机抽样调查 stratified random sampling surveys
采用分层随机抽样 Using Stratified Random Sampling
分层随机抽样 Stratified Ran do MS Ampling
最优分配分层随机抽样 Optimum allocation stratified randomized sampling survey
方法采用多阶段随机分层抽样方法，对1261名40岁以上居民进行问卷调查。
Methods Cluster, stratified and multistage sampling was taken. 1261 residents over 40 years old were assigned to fill in the questionnaires designed by WHO.
在简单随机抽样方法的基础上提出了分层抽样的模糊综合评价模型。
A layered sampling model for fuzzy comprehensive evaluation was developed based on simple random sampling methods.
具体介绍了砼强度检测抽样的几种方法：现行规程抽样法；简单随机抽样法；分层抽样法。
This paper introduced several methods about the concrete strength inspection: the sampling method given by the present specification; simple random sampling without replacement; stratified sampling.
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