Probability & EV Practice
Dice, coin and card probability plus expected-value calculation, on its own — today's free daily drill rotates a new set every day. No signup, runs entirely in your browser.
15 questions · 3 minutes · today's set
Dice, coin, and card probability plus quick expected-value calculations. +1 per correct answer, −1 per wrong answer, skips are free. Same 15 questions for everyone today — a new set rotates in tomorrow.
This is today's shared set — every visitor gets the same 15 questions in the same order today, so it's comparable, and it changes at the next UTC day. Answers accept decimals or fractions (e.g. 0.25 or 1/4). For number sequences instead, that's the separate Daily Sequence drill.
Want number sequences instead?
That's a separate skill with its own daily drill — see Number Sequence Practice. Or try the original combined 60-question Sequences & Probability test.
FAQ
What kinds of questions are in the daily drill?
15 questions in 3 minutes: dice-sum probability, die-roll expected value, coin-flip runs, card draws, binary-bet EV, and "at least one" / "never" run probability. Answers accept decimals or fractions.
Why is this separate from sequences now?
They're unrelated skills — probability/EV calculation versus pattern recognition in a series — bundled together in one legacy test only because they're both "generic firm-test" formats. This page is probability & EV only; see the separate Daily Sequence drill for number patterns.
Is there a longer, combined version?
Yes — the original 60-question Sequences & Probability test mixes both skills in one realistic-length fixed set. This daily drill is a shorter, probability-only, rotating alternative for regular practice.