| random sample |
随机样品（研究术语） |
(RESEARCH) A careful, limited selection from a larger group that is made in such as way as to insure each individual item has an equal probability of being selected, and therefore the selection accurately represents the whole |
EXAMPLE: As part of an effort to measure product quality, our research director tested a random sample of every tenth product our company manufactured during each different hour of factory operation.
作为评估产品质量的工作之一，我们的研究主管在工厂开工时的每个小时都抽取这一时段公司生产的第十件产品作为随机样品来检测。 |
