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Study design

Samples and surveys

Learn

Reasonable samples

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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 5 of 7 questions to level up!

Observational studies and experiments

Learn

Types of statistical studies

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Correlation and causality

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Appropriate statistical study example

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Observational studies and experiments

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Practice

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

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.