Accuracy vs. Precision Practice

Front

What is the definition of precision in measurements?

Back

Precision refers to how close a set of measurements are to each other, regardless of whether they are close to the true value.

Front

What is the definition of accuracy in measurements?

Back

Accuracy refers to how close a measurement is to the true or actual value.

Front

If a set of measurements is both accurate and precise, what does that mean?

Back

It means the measurements are close to the true value and also close to each other.

Front

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

Back

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

Front

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

Back

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

Front

What is an example of a precise measurement?

Back

A set of measurements like 5.1g, 5.2g, and 5.0g are precise because they are close to each other.

Front

What is an example of an accurate measurement?

Back

A measurement of 10.0g when the true value is also 10.0g is accurate.

Front

What is an example of measurements that are neither accurate nor precise?

Back

A set of measurements like 3.0g, 7.5g, and 1.2g are neither accurate nor precise.

Front

How can you improve the accuracy of a measurement?

Back

You can improve accuracy by using calibrated instruments and following proper measurement techniques.

Front

How can you improve the precision of a measurement?

Back

You can improve precision by taking multiple measurements and using the average.