ypes of sampling Methods 抽样方法类型 S amples Proba bility Samples Non-Probability Samples 非概率抽样 概率抽样 Simple Random Stratified Judgement Chunk Cluster Quota SystematicQuota Types of Sampling Methods 抽样方法类型 Samples Non-Probability Samples 非概率抽样 Judgement Chunk Probability Samples 概率抽样 Simple Random Systematic Stratified Cluster