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Thread: Probability problem the 2nd

  1. #1

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    Probability problem the 2nd

    Basheer studies four subjects each semester for six semesters in his university degree. There are five results for each subject and Basheer's chances of earning each result are:

    High Distinction- 7%
    Distinction- 34%
    Credit- 40%
    Pass- 16%
    Fail-3%

    What is the probability (to the nearest 0.1%) of earning no credits in one year?

  2. #2
    Addicted Member Rassis's Avatar
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    Re: Probability problem the 2nd

    Do you mean earning no credits at least once in any one of the 24 subjects (4 subjects/semester x 6 semesters) or no credits, coincidently, in all of the 8 subjects (4 subjects/semester x 2 semesters/year) in any one year? Or is there any other criterion?
    ...este projecto dos Deuses que os homens teimam em arruinar...

  3. #3
    Addicted Member Rassis's Avatar
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    Re: Probability problem the 2nd

    The probability of failing one or more of the 4 subjects/semester in a time span of 1 year is 0,213.
    The probability of failing one or more of the 4 subjects/semester in a time span of 3 years is 0,524.
    ...este projecto dos Deuses que os homens teimam em arruinar...

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