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How to Calculate Relative Uncertainty.
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How to Calculate Relative Uncertainty.

Rosemary Njeri

The relative uncertainty or error is used to calculate the uncertainty of a measurement compared to the size of the measurement.

The importance of relative uncertainty is that it puts error in measurements into perspective.

Formula to calculate relative uncertainty.

 Calculate Relative Uncertainty.

Example:

Suppose you were measuring three weights and your absolute error is ±0.05 and your best estimate is 1kg. Calculate the relative uncertainty.

 Calculate Relative Uncertainty.

Therefore, your relative uncertainty is 5%.

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