Question

what are absolute,relative and percentage error?..how to find it?


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Answer 1

Answer:

In words, the absolute error is the magnitude of the difference between the exact value and the approximation. The relative error is the absolute error divided by the magnitude of the exact value. The percent error is the relative error expressed in terms of per 100.

Answer 2

The absolute error is the magnitude of the difference between the exact value and the approximation.

It is the difference between the measured value and “true” value. For example, if a scale states 90 pounds but you know your true weight is 89 pounds, then the scale has an absolute error of 90 lbs – 89 lbs = 1 lbs.

The relative error is the absolute error divided by the magnitude of the exact value.

Divide the Absolute Error by the Actual Value of the item in question to get Relative Error. The result is the relative error.

The percent error is the relative error expressed in terms of per 100.

Percent error is determined by the difference between the exact value and the approximate value of a quantity, divided by the exact value and then multiplied by 100 to represent it as a percentage of the exact value.

Percent error = |Approximate value – Exact Value|/Exact value * 100.