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Math Help - Probability and Statistics homework problem question

  1. #1
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    Probability and Statistics homework problem question

    Example 1: Computers, fine arts, economics - this one requires using system of equations

    There are 500 seniors.
    210 are enrolled in computers
    80 do not need any of the 3
    80 are taking only fine arts.

    180 are taking fine arts.
    36 taking only economics and computers
    10 taking only fine arts and computers
    220 taking economics

    Find:
    1.) P(only taking economics)
    2.) P(economics and fine arts)
    3.) P(taking all 3 classes)
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  2. #2
    Senior Member jakncoke's Avatar
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    Re: Probability and Statistics homework problem question

    (View the picture to understand how i got the system) So, you have



    the system
    1) x + 10 + y + 36 = 210
    2) 80 + 10 + z + y = 180
    3) 36 + z + y + t = 220
    4) x + 10 + y + 36 + t + z + 80 = 420

    4 Systems, 4 variables, solve
    Attached Thumbnails Attached Thumbnails Probability and Statistics homework problem question-pic.png  
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  3. #3
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    Re: Probability and Statistics homework problem question

    how would i go about and solve this....
    Last edited by asilvester635; November 20th 2012 at 01:04 AM.
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