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how to calculate the percentage uncertainty. Percentage uncertainty A percentage by definition is a value out of a potential hundred. This is then multiplied by one hundred.
Next determine the measured value. Calculate the measure or reported value. Uncertainty u xi m2 n n-1 Uncertainty 003 seconds.
First determine the relative uncertainty.
Draw the min line -- the one with as small a slope as you think reasonable taking into account error bars while. Uncertainty u xi m2 n n-1 Uncertainty 003 seconds. The percentage is calculated by taking the absolute error in a measurement and dividing by the value of the measurement itself. Since the percent uncertainty is also a ratio of similar quantities it also has no units.