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how to find total percentage uncertainty. To find sources of uncertainty for your analysis follow steps listed below. With Microsoft Excel you can measure the uncertainty of the samples.
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Calculate the relative uncertainty. R 2 500 O -10. 5 text cm 52 52 2 5 text cm2 25 text cm2 10 textOr 10 text m 33 1000 text m3 3 3 1000 text m3 9.
An example of this type of total uncertainty if you measured the length of a track and measured the length of a cart moving along the track.
If youre taking a power of a value with an uncertainty you multiply the relative uncertainty by the number in the power. Next determine the measured value. Uncertainty u xi m2 n n-1 Uncertainty 003 seconds. I Find the average value of measured values.
