Final answer:
The question is about the precision and accuracy of measurements.
Step-by-step explanation:
The question is asking about the precision and accuracy of measurements in sets a, b, and c.
Set a is precise but inaccurate because the measurements are close together, but they are not correct. For example, if a person weighs 150 pounds, all the measurements in set a might be within a few pounds of 150, but none of them are exactly 150.
Set b is both precise and accurate because the measurements are close together and they are all correct. For example, if a person weighs 150 pounds, all the measurements in set b will be exactly 150.
Set c is neither precise nor accurate because the measurements are not close together and none of them are correct. For example, if a person weighs 150 pounds, the measurements in set c might range from 100 to 200 pounds.