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    Probability Question : Expected Value

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    Tom and Jim decided to play the following game for points. A single die is rolled. If it shows a non-prime number, Tom receives points equal to two times the number of dots showing. If it shows a prime number, Tom loses points equal to three times the number of dots showing. What is the expected value of the game?

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    https://brainmass.com/math/probability/probability-question-expected-value-10280

    Solution Preview

    because, a die has 6 faces: 1,2,3,4,5,6
    prime numbers: 2,3,5
    non-prime numbers: 1,4,6
    probability of getting a prime number q = 3/6 = ...

    Solution Summary

    Expected value is calculated based on probabilities. The probability of non-prime numbers are given.

    $2.49

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