Difference between accuracy and precision
  • In: Training | On: Oct 7, 2020

Accuracy vs Precision?

Difference between accuracy and precision

 

“Degree of accuracy ”

The accuracy of a measurement expressed as a proportion (percentage) of the quantity being measured. Thus a measurement of length to the nearest mm, say, has a degree of accuracy of 1% for a length of 100 millimetres, but only 10% for a length of 10cm.

Don’t confuse this with precision!

In the measurement of a set, accuracy is the closeness of the measurements to a specific value, while precision is the closeness of the measurements to each other.

It’s important to understand the difference, particularly when conducting quantitative RBI assessments.