Four people weigh a standard mass of 10.00 g on the same balance. Which of the following sets of readings suggest measurements that are precise but not accurate?

10.00 g, 10.01 g, 9.99 g, 9.98 g

10.00 g, 12.15 g, 8.03 g, 9.23 g

12.18 g, 12.16 g, 12.17 g, 12.18 g

10.0 g, 10.001 g, 9.9 g, 9.8995 g

Question

Four people weigh a standard mass of 10.00 g on the same balance. Which of the following sets of readings suggest measurements that are precise but not accurate?
		
10.00 g, 10.01 g, 9.99 g, 9.98 g
		
10.00 g, 12.15 g, 8.03 g, 9.23 g
		
12.18 g, 12.16 g, 12.17 g, 12.18 g
		
10.0 g, 10.001 g, 9.9 g, 9.8995 g

joannablackwelder · Answer

Precise means consistent. Accurate means close to the true value.

joannablackwelder · Answer

So, what measurements are consistent but not close to the true value?