One card each in casino war
You and the dealer are each dealt one card from a fair, shuffled -card deck. You win only if your card's rank is strictly higher than the dealer's. What is the probability you win?
Show hints (2)+
- Win and lose are symmetric: .
- A tie is matching ranks: given your card, of the rest match.
Answer
Reveal answer →Final answer
0.4706 (± 0.001)
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Asked at: Jane Street, Optiver