Percent Error Calculator

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Frequently Asked Questions FAQ

1. What is percentage error and why is it important to calculate it ?
The percentage error is a measurement that indicates the discrepancy between an experimentally measured value and an accepted or theoretical value. It is important to calculate it to evaluate the precision of the results obtained in experiments, measurements or analyses.
2. How to interpret a negative percentage error ?
A negative percentage error indicates that the measured value is less than the accepted value. This can occur due to several factors, such as measurement errors or inaccuracies in the data. It is essential to review experimental procedures and verify the accuracy of measuring instruments in cases of negative percentage error.
3. Can I use a percentage error calculator for statistical analysis ?
Yes, a percentage error calculator can be useful in statistical analysis, especially when you want to evaluate the accuracy of estimates or predictions. However, it is important to ensure that the data used is appropriate for this type of calculation and that the results are interpreted correctly.
4. What is the difference between percentage error and absolute error ?
Percentage error expresses the discrepancy between a measured value and an accepted value as a percentage of the accepted value. The absolute error represents the absolute difference between these two values, without taking into account the magnitude or direction of the discrepancy.
5. Is it possible to have a percentage error of 100% ?
Yes- it is possible to have a percentage error of 100%. This occurs when the measured value is twice the accepted value (or vice versa), resulting in a 100% discrepancy. In these cases, it is important to review the experimental procedures and check the accuracy of the measurements to identify possible sources of error.

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