Q&A for How to Calculate Relative Error

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  • Question
    What does the +/- sign tell about the relative percentage error?
    Donagan
    Top Answerer
    It means the reported or estimated amount could be higher or lower than the true amount.
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  • Question
    What is the difference between systematic and random errors?
    Community Answer
    Systematic errors are those which occur according to a certain pattern or system; these errors are due to known reasons. Random errors have no set pattern or cause.
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  • Question
    If the absolute error was 0.94, then what will the relative error be?
    Aditya Kannan
    Community Answer
    Relative error, as mentioned in the answer, equals (Absolute Error)/(Actual Value). Hence, it isn't possible to calculate relative error just by knowing the absolute error.
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  • Question
    What is the percentage error of the mass of sugar that weighs 10.00kg, correct to 2 decimal places?
    Community Answer
    Absolute error=1/2(0.01)=0.005. Relative error=0.005/10.00=0.0005. Percentage error=0.0005×100%=0.05%.
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