A set of data are all close to each other, and they are close to the actual value. this set of data can be described as accurate and precise.
Precision refers to how close measurements of the same item are to each other. Precision is independent of accuracy. That means it is possible to be very precise but not very accurate, and it is also possible to be accurate without being precise. The best quality scientific observations are both accurate and precise.
The quality or state of being precise : exactness. : the degree of refinement with which an operation is performed or a measurement stated compare accuracy sense.
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