430.One Re-Flip Each
★★★optimal stoppingCh. 6 — Random Variables and Expectation444+ Problems in Probability
You flip 8 fair coins at once, then may re-flip any subset of them, each coin at most once. You receive per head at the end. Playing optimally, what is the fair value of the game?
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Decide coin by coin — what's the value of one coin that you may re-flip once?
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