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Math Help - Probability Question

  1. #1
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    Probability Question

    Need help with these...

    An unemployment office in a small town has developed the following probability
    distribution for the number of new unemployment claims processed per week.


    Number of
    New Claims
    4
    5
    6
    7
    8
    9
    10



    Probability
    .05
    .10
    .15
    .20
    .20
    .20
    .10



    (a) What is the expected number of new unemployment claimsprocessed per week?

    (b) What is the variance in the number of new unemployment claims processed per week?

    (c) What is the standard deviation in the number of new unemployment claims processed per week?
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  2. #2
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    Quote Originally Posted by dalollis View Post
    Need help with these...

    An unemployment office in a small town has developed the following probability
    distribution for the number of new unemployment claims processed per week.


    Number of
    New Claims
    4
    5
    6
    7
    8
    9
    10



    Probability
    .05
    .10
    .15
    .20
    .20
    .20
    .10



    (a) What is the expected number of new unemployment claimsprocessed per week?

    (b) What is the variance in the number of new unemployment claims processed per week?

    (c) What is the standard deviation in the number of new unemployment claims processed per week?
    Apply the definitions of expected value and variance. Have you looked them up in your class notes or textbook? Where do you get stuck?
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  3. #3
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    Mar 2010
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    Got it. Thanks Mr. F
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