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14 October, 20:27

A player pays $1 to play a game where three fair dice are rolled. If three 6s are obtained the player wins $500, and otherwise thr pkayer wins nothing. What are the expected net winnings of this game?

Ans: $1.31

(I need a solution!)

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Answers (1)
  1. 14 October, 20:43
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    The chance to win = 1 : 6³ = 1 / 216

    To win $500, the player needs to pay $216 on average.

    500 / 216 = 2.31

    $2.31 win and $1 cost per game gives $1.31 net win.
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