Cluster and random sampling
cluster random sampling
集体随机取样
整群随机抽样
集群随机抽样
整群抽样
组群随机抽样
调查
method of random proportional sampling
Optimum allocation random stratified sampling survey
Random overall sampling
random sampling
随机采样
随机取样
随机抽样
任意抽样
无规采样
随意抽样
散乱抽样
随机服务
抽样调查
逢机取样
随机选样法
逢机采样
抽查
系统辨识
random sampling algorithms
Random sampling analysis on molecular surface
random sampling distribution
random sampling fashion
simple random sampling
简单随机抽样
简单随机抽样法
简单随机样本
单纯随机抽样
随机采样
statistics random sampling
stratified clustering random sampling
stratified random sampling
Systematic random sampling