random sample
英
美
- random adj.任意的;随机的;随意的n.随意;任意adv.随机地
- sample n.样品;样本vt.采样;取样;品尝,体验
Noun:
-
a sample in which every element in the population has an equal chance of being selected
-
a sample grabbed at random
用作名词 (n.)
- The opinion poll was based on a random sample of adults.
这次民意测验结果是在对成年人的随机抽样调查基础上得出来的。