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    Lifespan

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    A lifespan in hours for an electrical component is a random variable x, with cumulative dist. funct.:

    F(x) = {1-e^-x/100 for x>0
    0 elsewhere

    Determine probability function x for x:

    Which of the Following Answers:

    a.) F(x) = {100e^-x/100 for x>0
    0 elsewhere

    b.) F(x) = {1-1/100e^-x/100 for x>0
    0 elsewhere

    c.) F(x) = {1/100e^-x/100 for x>0
    0 elsewhere

    d.) F(x) = {x/100e^-x/100 for x>0
    0 elsewhere

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    https://brainmass.com/statistics/probability/cumulative-distribution-function-33579

    Solution Preview

    The answer is C

    The cumulative distribution function is F(x), ...

    Solution Summary

    A lifespan in hours for an electrical component is a random variable x, with cumulative dist. funct.:

    F(x) = {1-e^-x/100 for x>0
    0 elsewhere

    Determine probability function x for x:

    Which of the Following Answers:

    a.) F(x) = {100e^-x/100 for x>0
    0 elsewhere

    b.) F(x) = {1-1/100e^-x/100 for x>0
    0 elsewhere

    c.) F(x) = {1/100e^-x/100 for x>0
    0 elsewhere

    d.) F(x) = {x/100e^-x/100 for x>0
    0 elsewhere

    $2.49

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