Remember the dartboard analogy? Darts landing near the bull's eye mean accuracy, whereas misfires landing close together, but far from the bull's eye, are more indicative of precision or repeatability ...

Repeatability is the measurement of variation when a process is done multiple times. Precision is the means of reducing variation in a process, so the results have less variation as a whole.

Many people use the words “accuracy,” “precision,” and “resolution” as if they were synonyms, even though they are all very different. For example, datasheets for products as diverse as test & ...