Question

Which of the following is correct according to calculating relative error as a measure of Precision?

(a) (Absolute error/ True value)*100

(b) (Absolute error/True value)

(c) (measurement being taken/Absolute error)*100

(d) (Absolute error/measurement being taken)

The question was asked during an online interview.

I want to ask this question from Errors in Data and Calculations topic in section Presentation and Analysis of Data of Bioprocess Engineering

Answer 1

Correct option is (d) (Absolute error/measurement being taken)

Best explanation: Relative error (RE) — when used as a measure of precision — is the ratio of the absolute error of a measurement to the measurement being taken. In other words, this type of error is relative to the size of the item being measured. RE is expressed as a percentage and has no units.