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Mathematics, 15.06.2021 06:00 sarahgarza5440

Koby visits one randomly selected science class from each grade and surveys all the students in each class. What question could he ask so that this group is a random sample? What question could he ask so that this group is a biased sample? Explain.

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Koby visits one randomly selected science class from each grade and surveys all the students in each...

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