Author Question: Differentiate between accuracy and precision. ... (Read 122 times)

anshika · **on:** Jul 28, 2018

Differentiate between accuracy and precision.

Question 2

Define measurement, and give an example.

Dominic · **Reply #1 on:** Jul 28, 2018

Answer to Question 1

Accuracy refers to how well the experimental value agrees with the true or exact
value. Precision refers to the degree of reproducibility of a measurement, that is, to
the maximum possible variations in of the actual measurements taken. Both may be
expressed as a plus/minus correction value or as a percentage.

Answer to Question 2

Measurement is the comparison of an unknown quantity to a standard. Example: The
long dimension of a page of the Laboratory Guide is 27.7 cm, that us 27.7 times as
long as a standard centimeter.