Mathematics, 06.03.2020 22:35, amontes189gmialcom

A teacher identifies all freshman, sophomore, junior, and senior students at a local high school. She then selects a sample of 10 students in each class using a random sampling procedure before combining all selected students into one larger sample of 40 total students. What sampling method did the researcher use?

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A teacher identifies all freshman, sophomore, junior, and senior students at a local high school. Sh...