What is the degree of exactness of a measurement?

The degree of exactness of a measurement, often referred to as its precision, indicates how closely repeated measurements of the same quantity agree with each other. It is influenced by the measurement instrument's resolution and the technique used. A high degree of exactness implies minimal variability and greater reliability in the measurement results. However, it is important to distinguish between precision and accuracy, as a measurement can be precise but not accurate if it consistently deviates from the true value.