A researcher would like to select a sample of 50 people so that five different age groups are equally represented in the sample. Assuming that the researcher does not know the entire list of people in the population, which sampling technique should be used?

Quota sampling

Explanation:

Quota sampling  is the sampling technique in which well fitted characteristic persisting sample is chosen as a sample form population is mostly used for researching certain trait in a subgroup such as income, gender,age etc.

According to the question , quota sampling should be used by researcher to gain a sample of 50 people from the population to display certain trait of five different age persisting cluster of people can be formed.

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it all depends on how long the hours are. i think they wouldn't approve of it. in my opinion.