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Math Help - defect rate question

  1. #1
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    defect rate question

    I have come across a problem that I can not figure out how to answer.


    The Patel Manuafacturing Company allows for a defect rate of 0.5% on its producation line. The defect average for last week was 6 items out of 1,800. What is the difference between the allowed defect rate and the defect average for last week?

    Please help!
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by mathtutor View Post
    I have come across a problem that I can not figure out how to answer.


    The Patel Manuafacturing Company allows for a defect rate of 0.5% on its producation line. The defect average for last week was 6 items out of 1,800. What is the difference between the allowed defect rate and the defect average for last week?

    Please help!
    Defect rate last week is

    \frac{6}{1800} \times 100 \ =(1/3) \% =0.33333.. \%



    difference in rates:

    \frac{6}{19}= 0.5-0.3333..=0.1666.. \%

    (possibly negative if you want -ve to denote lower than allowed rate)

    RonL
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