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Unit: Study design

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Possible mastery points

About this unit

Every good investigation begins with a good question! Learn how to form questions and gather data to explore those questions. You'll also learn about some investigative techniques, including sampling, survey methods, observational studies, and basic experimental design.

Statistical questions

Learn

Practice

Statistical questionsGet 5 of 7 questions to level up!

Sampling and observational studies

Learn

Practice

Valid claimsGet 3 of 4 questions to level up!
Making inferences from random samplesGet 3 of 4 questions to level up!
Identify the population and sampleGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 320 Mastery points

Sampling methods

Learn

Practice

Using probability to make fair decisionsGet 3 of 4 questions to level up!
Simple random samplesGet 3 of 4 questions to level up!
Sampling methodsGet 5 of 7 questions to level up!

Quiz 2

Level up on the above skills and collect up to 240 Mastery points

Types of studies (experimental vs. observational)

Learn

Practice

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

Experiments

Learn

Practice

Experiment designsGet 3 of 4 questions to level up!

Quiz 3

Level up on the above skills and collect up to 160 Mastery points

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 900 Mastery points!