We based our analysis on a random sample of more than 200 males.

我们把我们的分析基于二百多名男性的一组随机抽样。

《柯林斯英汉双解大词典》

The survey used a random sample of two thousand people across the Midwest.

这项调查使用的是对中西部地区2000人的随机取样。

《柯林斯英汉双解大词典》

The interviews were given to a random sample of students.

随机抽选出部分学生进行了采访。

《牛津词典》

We estimate that about 5 to 8 percent of a random sample of children have ADD.

NPR: Excerpt: 'Delivered from Distraction'

It was based on a random sample of 625 lone parents interviewed in 1991 and again in 1995.

BBC: Working parents are 'in control' says survey

The National Federation of Independent Business (NFIB) conducts monthly surveys of a random sample of its 350, 000 members.

FORBES: Is The Jobs Market Really Improving?