Four people weigh a standard mass of 10.00 g on the same balance. The first person obtains a reading of 12.00 g, the second person reads 9.14 g, the third person reads 10.33 g, and the fourth person reads 12.55 g. These readings suggest the balance is

Precise

Accurate

Neither accurate nor precise

Accurate and precise

Question

Four people weigh a standard mass of 10.00 g on the same balance. The first person obtains a reading of 12.00 g, the second person reads 9.14 g, the third person reads 10.33 g, and the fourth person reads 12.55 g. These readings suggest the balance is

		
Precise
 		
Accurate
 		
Neither accurate nor precise
 		
Accurate and precise

australopithecus · Answer

imagine a dart board

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When you throw multiple darts in the same spot or very close to the same spot every time anywhere on the board your shot is considered precise

When you throw a dart and hit the middle of the board you are considered accurate.

So accuracy is concerned with hitting the right value, whereas precision is concerned with hitting the same value over and over.

anonymous · Answer

Ok, thanks! I just found that in the back of my textbook, just as you posted! Thanks anyway, though!