![]() ![]() The computation of percentage error involves the use of the absolute error, which is simply the difference between the observed and the true value. If, for example, the measured value varies from the expected value by 90%, there is likely an error, or the method of measurement may not be accurate. In most cases, a small percentage error is desirable, while a large percentage error may indicate an error or that an experiment or measurement technique may need to be re-evaluated. ![]() A small percentage error means that the observed and true value are close while a large percentage error indicates that the observed and true value vary greatly. Calculating the percentage error provides a means to quantify the degree by which a measured value varies relative to the true value. Error can arise due to many different reasons that are often related to human error, but can also be due to estimations and limitations of devices used in measurement. When measuring data, whether it be the density of some material, standard acceleration due to gravity of a falling object, or something else entirely, the measured value often varies from the true value. known values as well as to assess whether the measurements taken are valid. It is typically used to compare measured vs. Percentage error is a measurement of the discrepancy between an observed (measured) and a true (expected, accepted, known etc.) value. ![]() Related Percentage Calculator | Scientific Calculator | Statistics Calculator Percentage Error ![]()
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