Priors

Counting and complements · Cards · difficulty 2 of 5

Holding an ace

You are dealt 13 cards from a well-shuffled standard 52-card deck, which has 4 aces. (A bridge hand is 13 cards.) What is the probability that your hand contains at least one ace?

Answer with a probability. First lock in a gut guess with an 80% range, then solve it properly, then watch a simulation settle on the truth.

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