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Resources

Free books, simulations, tools and reference sheets, chosen and shared by teachers and learners. Pick a subject and a level to see what is there.

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Khan Academy: Statistics and probability

Free videos and practice on data, averages, probability and the first ideas of inference.

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OpenIntro Statistics (free book)

A free textbook that takes you from data and probability to regression, with real examples. A good next step after First Steps.

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Seeing Theory: a visual introduction to statistics

Interactive pictures of probability and statistics from Brown University. You can drag, click and watch the ideas move.

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