The article at the link below should help you get a handle on the subtle differences between accuracy and precision.
What determines how precise a measurement is
because of the mass
Yes it is possible. 21.354 inches is very precise but could be inaccurate.
Synonyms of "specific" and "precise" include accurate, detailed, explicit, stringent or rigorous. A precise measurement is one made with well-maintained equipment and using the correct methods in a careful manner.
precise is precise and concise is concise
What determines how precise a measurement is
Imagine a dartboard. An accurate measurement would be analogous to hitting the bulls-eye. While a precise measurement is just the tight clustering of shots.
The measurement that is accurate is one that is precise. These are also commonly titled accurate measurements in the books.
No. Accurate relates to how close the actual measurement the instrument measures. Precise relates to how much detail the instrument gives when measuring. They are independent to each other: An measurement can be precise and accurate (eg the value of π is 3.141592654) An measurement can be precise and inaccurate (eg the value of π is 1.733677432) An measurement can be less precise and accurate (eg the value of π is 3.14) An measurement can be less precise and inaccurate (eg the value of π is 1.73).
An automatically measurement has a higher precision than a manually measurement.
You can make a very precise measurement with a poorly calibrated device.
because of the mass
Yes it is possible. 21.354 inches is very precise but could be inaccurate.
The word accurate is a synonym for precise. So the most accurate (or precise) answer would be 57.213 because it is more accurate if the number is not rounded.
An accurate answer to a question answers the question. The precision depends on the level of accuracy of the answer.
The scale is precise but not accurate. (APEX)
because they are both a reliable measurement and is both accurate and precise