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Math Help - probability1

  1. #1
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    probability1

    A corporation produces packages of paper clips. The number of clips per packages varies

    Number of clips Proportion of packages
    47 0.04
    48 0.13
    49 0.21
    50 0.29
    51 0.20
    52 0.10
    53 0.03


    Two packages are chosen at random. What is the probability that at least one of them contains at least 50 clips?

    No idea. Thanks a lot.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by 0123 View Post
    A corporation produces packages of paper clips. The number of clips per packages varies

    Number of clips Proportion of packages
    47 0.04
    48 0.13
    49 0.21
    50 0.29
    51 0.20
    52 0.10
    53 0.03


    Two packages are chosen at random. What is the probability that at least one of them contains at least 50 clips?

    No idea. Thanks a lot.

    This is 1 minus the parbability that both contain less than 50.

    So add up the probabilities for 47 to 49 to get the probability that a pack
    contains less than 40. Then the probability that poth contain less than 50
    is the square of this.


    RonL
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  3. #3
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    Am I squaring because I am multiplying them because they are indeoendent?
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by 0123 View Post
    Am I squaring because I am multiplying them because they are indeoendent?
    Yes

    RonL
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