Statistical inference introduction
You can informally compare two groups of data by looking at their centers (like their means) and how much they vary: for example, if one basketball team's heights average 70 inches and a soccer team's average 65 inches, but both vary by only about 3 inches, the 5-inch difference between the team averages looks meaningful since it's bigger than the spread within each team.
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Test your knowledge
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Midterm
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This final covers a lot of topics, so it's split into 2 parts. Each part includes a question from every one of its topics.
Final, Part 1 of 2
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Final, Part 2 of 2
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