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In order to qualify as a random sample______________?

Sociologymedium
Aat least 100 people must be selected
every sub-sample of the population must be represented
Cevery member of the population must have an equal chance of being chosen
Da phone book must be used to generate random names. E. the researcher must pre-test the subjects

Correct Answer: B. every sub-sample of the population must be represented

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