33 genuine Cambridge International 9709 past-paper questions on Discrete Random Variables, every one tagged by difficulty and paired with its official mark scheme.
These questions span probability distributions, E(X) and Var(X), binomial and geometric models — pulled from real Probability & Statistics 1 (9709) exam papers across recent sessions, so your practice matches what Cambridge actually asks.
Full past papers mix every topic together, which is great near the exam but slow when you're trying to fix one weak area. AceLevels lets you drill just Discrete Random Variables — pick how many Easy, Medium and Hard questions you want, and get a custom paper with the mark scheme included, as a clean printable PDF or right in your browser. It's completely free: no accounts required to try it, no paywalls, ever.