We are excited to share that we've made significant enhancements to our AP®/College Statistics course. One consequence of adding this new content is that it may impact learners’ Mastery percentages.
When we add new content and remove old content, Mastery percentages often change because the number of available skills changes. For example, if you mastered 90 out of 100 skills in a course, and we added 10 new skills, your mastery skill count would then be 90 out of 110. This change would change your Mastery percentage from 90% to 82%.
With this specific course update, we expect that Mastery percentages will change by a maximum of 10%. Most people will see a much smaller Mastery percentage change.
You can see exactly what content items we’ve added and removed below. Happy learning!
Content Added
Articles
Exercises
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Develop probability distributions: Theoretical probabilities |
Videos
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Theoretical probability distribution example: multiplication |
Content Removed
Articles
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Observational studies and experiments |
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Positive and negative associations in scatterplots |
Exercises
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Calculating the median |
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Creating dot plots |
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Properties of density curves |
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Calculating the mean |
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Creating box plots |
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Area under density curves |
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Independent probability |
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Probabilities of compound events |
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Dependent probability |
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Probability in density curves |
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Sample size and margin of error in a confidence interval for a mean |
Videos
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Worked example: Creating a box plot (odd number of data points) |
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Worked example finding area under density curves |
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Types of statistical studies |
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Mean, median, & mode example |
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Worked example: Creating a box plot (even number of data points) |
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Density curve worked example |
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Worked example identifying experiment |
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Can causality be established from this study? |
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Free-throw probability |
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Three-pointer vs free-throw probability |
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Sample size for a given margin of error for a mean |
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