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Lowest terms please and if showing in % have two decimal places. Thank you! A test of the effectiveness of a new curriculum could begin

Lowest terms please and if showing in % have two decimal places. Thank you!

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A test of the effectiveness of a new curriculum could begin by dividing an area by school district, then choosing a school or set number of schools at random and collecting data about all students in each. Identify which type of sampling is used and why

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