define accuracy & precision with examples .
define absolute error, relative error & percentage error of the radius of cylinder measured by a Vernier caliper 2.52 cm ,2.45 cm, 2.41 cm ,2.48cm ,2.44 cm
Answers
Errors
Explanation:
Accuracy: Accuracy refers to the closeness of a measured value to a typical or known value. Accuracy refers to how closely the measured value of a quantity corresponds to its true value.
Precision: Precision refers to the closeness of two or more measurements to every other. Precision is defined as the quality of being exact and refers to how close two or more measurements are to every other, no matter whether those measurements are accurate or not.
Absolute Error: Absolute Error in measurement refers to the particular amount of error within the measurement. It's the difference between the measured value and true value.
Relative Error: It's the ratio of absolutely the error of a measurement to the measurement being taken. The relative error is that the absolute error divided by the magnitude of the precise value.
Percentage Error: Percentage error is that the difference between estimated value and therefore the actual value as compared to the particular value and is expressed as a percentage.