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Suppose you pay $3.00 to roll a fair die with the understanding that you will get back $5.00 for rolling a 1 or a 6, nothing otherwise. What is your expected value?

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  1. -3 + 1/3 * 5 = ?

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    oobleck
  2. -1.33?

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  3. yes. or, to be more exact, -4/3

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    oobleck
  4. Thank you!

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