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Math Help - Theoretical Exercise

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    Theoretical Exercise

    Let X be such that

    P(X=1) = p = 1-P(X=-1)

    Find c does not equal 1 such that E(c^x)=1
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  2. #2
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    Quote Originally Posted by taylor1234 View Post
    Let X be such that

    P(X=1) = p = 1-P(X=-1)

    Find c does not equal 1 such that E(c^x)=1
    By definition, you need to solve pc + (1 - p)C^{-1} = 1 for c.

    If you need more help, please show all your work and say where you get stuck.
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