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Calculating percentages

  1. Feb 15, 2007 #1
    Hi I am trying to calculate a result for a module I took

    I got 56 % for assignment 1
    I got 62% for assignment 2

    Assignment 1 counts as 40% of the module
    Assignment 2 counts as 60% of the module

    Can anyone tell me what my final percentage is for the module please

    Thanks a lot

    cheers

    Jamie
     
  2. jcsd
  3. Feb 15, 2007 #2

    cristo

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    Staff Emeritus
    Science Advisor

    Generally, if mark a counts for x percent, and b counts for y percent, then the overall score will be (ax+by)/100. Plug in your values and you will get your average (59.6)
     
  4. Feb 15, 2007 #3
    Sorry could you just clarify what you mean by (ax+by)/100.. Sorry having a dumb day

    cheers
     
  5. Feb 22, 2007 #4
    You want to find the weighted mean.

    You got 56 in Ass. 1 which is worth 40%.
    You got 62 in Ass. 2 which is worth 60%.

    56(40) + 62(60)
    ---------------
    40 + 60

    is your weighted mean, 59.6.
     
  6. Feb 24, 2007 #5

    uart

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    Science Advisor

    Wow, I really hope it wasn't a module in mathematics. :tongue:
     
  7. Feb 25, 2007 #6
    Here's how I think of it:

    40% of Assignment1 + 60% of Assignment2 = 100% of your grade

    0.40(56) + 0.6(62) = 22.4 + 37.2 = 59.6

    100% of 59.6 is 59.6.
     
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