1.2 Accuracy and Precision

Front

What does accuracy mean?

Back

Accuracy means the measurement is close to the true value.

Front

What does precision refer to?

Back

Precision is a measure of how close measurements come to each other when they are made in the same way.

Front

How would you describe a measurement that is not accurate and not very precise?

Back

It is a measurement that does not reflect the true value and the results are scattered.

Front

What does a bullseye with all darts clustered together but far from the center indicate?

Back

It indicates high precision but low accuracy.

Front

What does a bullseye with darts spread out and hitting the center indicate?

Back

It indicates high accuracy and low precision.

Front

How close a measurement is to the accepted value is called ___________.

Back

Accuracy.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how close measurements are to each other.

Front

If a set of measurements are all the same but far from the true value, what is this an example of?

Back

This is an example of high precision but low accuracy.

Front

What is an example of high accuracy and high precision?

Back

A set of measurements that are all very close to the true value and to each other.

Front

What does it mean if measurements are precise but not accurate?

Back

It means the measurements are consistent with each other but not close to the true value.