Final answer:
Precision is a measure of how close a series of measurements are to one another, while accuracy is a measure of how close a measurement is to the correct or accepted value. The two concepts are distinct and can be illustrated using examples like GPS measurements.
Step-by-step explanation:
The main difference between precision and non-precision approaches is:
Precision is a measure of how close a series of measurements are to one another. It determines the reproducibility or consistency of the measurements. A precise measurement will yield similar results when repeated.
On the other hand, accuracy is a measure of how close a measurement is to the correct or accepted value. It determines how well the measurement reflects the true value. An accurate measurement may not be precise if it consistently deviates from the true value.
For example, in a GPS system attempting to locate a restaurant, if the measurements are spread far apart but close to the actual location, it indicates high accuracy and low precision. If the measurements are concentrated closely together but far from the actual location, it indicates low accuracy and high precision.