Final answer:
Precision refers to measurements that are very close together, accuracy refers to measurements that are very close to the true value.
Step-by-step explanation:
Precision refers to how close together repeated measurements of the same quantity are. If two measurements are very close to each other, they are considered precise. For example, if you measure the length of an object and get 11.1 inches and then measure it again and get 11.2 inches, these measurements are very close and therefore precise.
Accuracy, on the other hand, is how close a measurement is to the true or accepted value. So if the true length of the object is 11 inches, and your measurements are 11.1 inches and 11.2 inches, then they are accurate because they are very close to the true value.
In summary, if two measurements are very close to each other, they are precise. If they are also very close to the true value, they are accurate.
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