Thursday, May 9, 2013

Expected Value Exercise 4



Expected Value Exercise 4

An investment opportunity has two possible outcomes, and the value of the investment opportunity is $250.  One outcome yields a $100 payoff and has a probability of 0.25.   

What is the probability of the other outcome?

4 comments:

  1. EV= $250
    two possible outcomes: 0.25 and (1-0.25)
    payoffs: $x and $100

    so, the probability of the other outcome is 0.75


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  2. Known :
    The Expected Value of investment is $250
    One probability of 0.25 (0.25 x 100% = 25%) has outcome yields $ 100
    Solutions:
    So the other probability = 100 % - 25 % = 75%
    So the other outcome is :
    Expected Value = ( First outcome known) (Probability of first outcome known) + (Unknown outcome) (Probability of unknown outcome)
    $ 250 = ( $ 100 * 0.25 ) + ( x * 0.75 )
    0.75 x = $ 250 - $ 25
    0.75 x = $ 225
    X = $ 225 / 0.75
    X = $ 300
    So the other probability is 0.75 with $ 300 possible outcome

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  3. the steps is same like excercise 3 before.

    E(v) = $250
    one outcome = $ 100
    Probability = 0,25

    as has been said on the question above One outcome yields a $100 payoff "and has a probability of 0.25"
    so 1-0,25 = 0,75 is the other probability.

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