31.   Occasionally, especially around election time, we have a wealth of letters and have to choose a representative sample.

32.   Rather, the fund seeks to match their performance by buying a representative sample.

33.   She said the survey would be conducted from a nationally representative sample of all races.

34.   That poses a major problem to creating a representative sample.

35.   That is a useful factif the poll is based on a representative sample of Americans.

36.   The basic task of sampling is to draw a representative sample from a universe of possible observations.

37.   The committee hopes to get a representative sample.

38.   The estimate of the number of carjackings was derived from the National Crime Victimization Survey, a nationally representative sample of households that are questioned by the Census Bureau.

39.   The convention is to bring a representative sample of U.S. citizens to Austin where they will spend two days studying and deliberating national issues.

40.   The most common method is call-out, in which stations phone a representative sample of their listeners and ask for their opinions.