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Thread: Expectation values

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    Aug 2010
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    Expectation values

    The second question. I appreciate any help that anyone can provide.

    Spin the dreidel is a gambling game which uses a 4-sided top, each side has an equal chance of being up when the top topples.

    Side 1 The player wins the whole pot
    Side 2 The player wins half the pot
    Side 3 Nothing happens the next player gets the top
    Side 4 The player puts a coin in the pot

    Whenever the pot is emptied every player puts a coin in the pot.

    Assume there are six players, who have each just put a coin in the pot.

    Part A What is the expectation value for the player that spins first?

    Part B What is the expectation value for the player that spins second?

    The following doesn't format correctly when saved. f(x) is over 0.25, and x is over 6


    f(x) x
    Side 1 0.25 6
    Side 2 0.25 3
    Side 3 0.25 0
    Side 4 0.25 -1

    The following doesn't format correctly when saved. f(x) is over 0.25, and then over .0625, while x and x*f(x) are for the answers

    f(x) f(x) x x*f(x)
    Side 1 0.25 Side 1 0.0625
    Side 2 0.0625
    Side 3 0.0625
    Side 4 0.0625
    Side 2 0.25 Side 1 0.0625
    Side 2 0.0625
    Side 3 0.0625
    Side 4 0.0625
    Side 3 0.25 Side 1 0.0625
    Side 2 0.0625
    Side 3 0.0625
    Side 4 0.0625
    Side 4 0.25 Side 1 0.0625
    Side 2 0.0625
    Side 3 0.0625
    Side 4 0.0625



    E(X) 0
    Last edited by Frustrated01; Aug 21st, 2010 at 09:51 AM.

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