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Math Help - error and percent error

  1. #1
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    error and percent error

    Ugh, greatest possible error and percent error is not my best friend.

    How do I solve these problems...Ive never covered this stuff in school.
    Last edited by mr fantastic; October 30th 2009 at 02:04 PM. Reason: Changed post title
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by LivinLife View Post
    Ugh, greatest possible error and percent error is not my best friend.

    How do I solve these problems...Ive never covered this stuff in school.
    Hi LivinLife,

    What problems? I don't see any.

    The Greatest Possible Error of a measurement is one half of the unit of measure to which the measure is being rounded.

    Example: If you are measuring a length using inches, the greatest possible error would be 1/2 inch. If you measured in meters, the greatest possible error would be 50 cm (1/2 meter).


    Per Cent Error = \frac{\text{Observed value - True Value}}{\text{True Value}} \times 100
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  3. #3
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    Quote Originally Posted by masters View Post
    Hi LivinLife,

    What problems? I don't see any.

    The Greatest Possible Error of a measurement is one half of the unit of measure to which the measure is being rounded.

    Example: If you are measuring a length using inches, the greatest possible error would be 1/2 inch. If you measured in meters, the greatest possible error would be 50 cm (1/2 meter).


    Per Cent Error = \frac{\text{Observed value - True Value}}{\text{True Value}} \times 100

    haha sorry...
    um the questions im trying to figure out are:

    Find the greatest possible error for the measurement 0.991g
    Find the percent error for 2cm (round to the nearest hundredth)
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