It is this requirement which requires a listing of the population members, or units, from which the sample may be drawn using a random procedure.

Within each household one adult was selected by a random procedure to respond to the survey.

Within each household, one adult was designated by a random procedure to be the respondent for the survey, to gain equal access to all adults in the households.

Although there was a random procedure for replacing such houses with others of the same general type, interviewing was nevertheless a time-consuming, depressing and occasionally frightening experience.

Beginning July 1, all of the criminal cases will be assigned to judges by the random procedure, which a magistrate will conduct in open court.

Within each household, both in the new poll and the earlier polls, one adult was designated by a random procedure to be the respondent for the survey.

Within each household one adult was designated by a random procedure as the respondent.

For both polls, one adult within each household was designated by a random procedure to be the respondent.

We must think of the two numbers in the envelopes as chosen by the arranger of the game according to some possibly random procedure, completely unknown to us, and fixed.

These pieces predate John Cage's Music of Changes (1951), which is often considered the first modern piece to be conceived largely through random procedures.