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Unit 11: Confidence intervals

800 possible mastery points

About this unit

"The average lifespan of a fruit fly is between 1 day and 10 years" is an example of a confidence interval, but it's not a very useful one. From scientific measures to election predictions, confidence intervals give us a range of plausible values for some unknown value based on results from a sample. Let's learn to make useful and reliable confidence intervals for means and proportions.

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Unit test

Level up on all the skills in this unit and collect up to 800 Mastery points!