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Mathematics, 22.07.2020 14:01 alanmarcus22

At a college there are 120 freshmen, 90 sophomores, 110 juniors, and 80 seniors. A school administrator selects a random sample of 12 of the freshmen, a random sample of 9 of the sophomores, a random sample of 11 of the juniors, and a random sample of 8 of the seniors. She then interviews all the students selected. Identify the type of sampling used in this example.

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At a college there are 120 freshmen, 90 sophomores, 110 juniors, and 80 seniors. A school administra...

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