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Unit: Study Design

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Samples and surveys

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Practice

Valid claimsGet 3 of 4 questions to level up!
Making inferences from random samplesGet 3 of 4 questions to level up!

Observational studies and experiments

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Practice

Types of statistical studiesGet 3 of 4 questions to level up!

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Unit test

Level up on all the skills in this unit and collect up to 300 Mastery points!

About this unit

Getting reliable data is vital if we want to make correct conclusions.The process of collecting data through studies involves sampling, observations, surveys, and experiments.