Mean absolute error – Rankers Physics
Topic: Unit And Dimensions
Subtopic: Error Analysis

Mean absolute error

Assertion (A): Mean absolute error of a measurement is always positive.
Reason (R): Mean absolute error is defined as the magnitude of difference between true value and measured value.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

Mean absolute error is the arithmetic mean of all absolute errors and is always positive. The definition given in the reason describes individual absolute error rather than the mean absolute error, so R is false.

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