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anonymous

  • one year ago

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the number on the die times $20. If the number is not a multiple of three, the player gets nothing. What is the expected value of a player's winnings on each roll? A)$3.33 B)$6.66 C)$8.50 D)$30 E)$40

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  1. anonymous
    • one year ago
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    whole number multiple of 3 is 3 and 6 right?

  2. anonymous
    • one year ago
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    so the two possible amounts you can win are \(60\) or \(120\)

  3. anonymous
    • one year ago
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    to find the expected value, add them up and divide by 6

  4. anonymous
    • one year ago
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    30

  5. anonymous
    • one year ago
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    Thank you

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