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    How do i work out the % error of a gradient? (on Excel preferably)
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    you can do regression analysis, or least square fitting, or chi squared etc. There are many ways
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    (Original post by franniexo)
    How do i work out the % error of a gradient? (on Excel preferably)
    You're going to need to tell us a bit more. Did you measure the x and/or y values? What was the accuracy of measurement? What are you actually trying to do?
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    (Original post by franniexo)
    How do i work out the % error of a gradient? (on Excel preferably)
    Also what is this for? GCSE maths? A level?
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    (Original post by Mr M)
    You're going to need to tell us a bit more. Did you measure the x and/or y values? What was the accuracy of measurement? What are you actually trying to do?
    Well, i have data from an experiment which i've done and i've plotted a graph on it, i found the gradient and intercept using the regression table & its errors, however I'm not sure whether those errors are already in % or whether i need to work out % using those values.

    Hope this makes sense
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    (Original post by Darth_Narwhale)
    Also what is this for? GCSE maths? A level?
    2nd year chemistry undergrad
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    oh okay, the error will be an absolute value, not a percentage, and will be one standard deviation. In other words, about 68% of your data will lie within that range. (this is assuming your errors are random and hence gaussian)
 
 
 
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