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.
Free videos and practice on data, averages, probability and the first ideas of inference.
Draw life expectancy, income and population of every country over two hundred years. A great source of real data for a project.
A free textbook that takes you from data and probability to regression, with real examples. A good next step after First Steps.
Interactive pictures of probability and statistics from Brown University. You can drag, click and watch the ideas move.