MIT's opening statistics lecture: what statistics is for, sampling, variability and descriptive measures, taught with the rigour you would expect and no hand-waving. The strongest foundation available free if you intend to trust your models.
Editorial review dimensions (1–5), assigned by LearnPath editors — not a computed score. Last reviewed 2026-09-12.
What you walk away with
Reason about sampling, variability and estimation
Avoid the common misreadings of summary statistics