MathCastle
Counting & ProbabilityChallengeCounting Strategies: Casework, Complementary & Overcounting

Counting Strategies: Casework, Complementary & Overcounting · Challenge problem

A 33-card hand is dealt from a standard 5252-card deck (1313 ranks, 44 suits per rank). How many 33-card hands contain at least two cards of the same rank?