Random Selection for Drug Screening

Center for Human Reliability Studies

关键词: PROBABILITY;    SAMPLING;    DRUG ABUSE;    DRUGS;    CRIME DETECTION drug screenings;    random selection;   

DOI  :  10.2172/908421
RP-ID  :  orise-07-nsem-0545
PID  :  OSTI ID: 908421
Others  :  TRN: US200722%%464

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Sampling is the process of choosing some members out of a group or population. Probablity sampling, or random sampling, is the process of selecting members by chance with a known probability of each individual being chosen.