# Study design

# Unlock your personalized study plan

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Statistical questions

7 questions

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Practice

Valid claims

4 questions

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Making inferences from random samples

7 questions

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Identifying the population and sample

4 questions

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Using probability to make fair decisions

4 questions

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Simple random samples

7 questions

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Sampling methods

7 questions

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Test your understanding of

**Study design**with these 10 questions.About this unit

Statistics is all about forming questions and gathering data to explore those questions. This unit covers sampling and survey methods, observational studies, and basic experiment design.