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Glossary

Every technical term this platform uses, with what it means and — the part that is harder to find elsewhere — the mistake it prevents. On this subject the intuitive reading is often the wrong one, so each entry says what a reader would otherwise get wrong.

Evidence

Confidence interval

A range that would contain the true value most of the time, given the data.

Easy to get wrong: It is not a range the true value is 95% likely to sit in for this one experiment — it is a statement about the procedure, repeated.

Seen in use on /leaderboard