random sample

英 美
  • n.随机抽样调查
  • 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:
  1. a sample in which every element in the population has an equal chance of being selected

  2. a sample grabbed at random

    用作名词 (n.)
    1. 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。