Floating geometric shape image
Floating geometric shape image

Brainteaser iconBrainteaser - Stop-or-Go on a Six-Card Deck

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Stop-or-Go on a Six-Card Deck
Probability
DRW
You face a face-down mini-deck of 6 cards: 3 black (+£1 each) and 3 red (−£1 each). Draw sequentially without replacement, stopping whenever you wish. With optimal play, what is your expected profit?