# Question

Gambles are independent, and each one results in the player being equally likely to win or lose 1 unit. Let W denote the net winnings of a gambler whose strategy is to stop gambling immediately after his first win. Find

(a) P{W > 0}

(b) P{W < 0}

(c) E[W]

(a) P{W > 0}

(b) P{W < 0}

(c) E[W]

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