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Not feeling ready for this? Check out Get ready for AP® Statistics.

Updates coming!

We will update this course in late July to better align with the official course and exam description. Your mastery percentages will change, but you will keep your progress in the exercises where you've already worked.

Confidence intervals for the difference between two proportions: Inference comparing two groups or populationsTesting the difference between two proportions: Inference comparing two groups or populationsConfidence intervals for the difference between two means: Inference comparing two groups or populations

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.

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