1.2 Accuracy and Precision

Front

What is the definition of accuracy?

Back

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

Front

What is the definition of precision?

Back

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

Front

What does it mean if a measurement is precise but not accurate?

Back

It means the measurements are consistent with each other but far from the true value.

Front

What does it mean if a measurement is accurate but not precise?

Back

It means the measurement is close to the true value but varies widely with other measurements.

Front

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

Back

It represents high precision but low accuracy.

Front

What does a bullseye with darts spread out but centered around the target represent?

Back

It represents high accuracy but low precision.

Front

What does a bullseye with darts scattered and far from the center represent?

Back

It represents low accuracy and low precision.

Front

What is an example of high accuracy and high precision?

Back

All measurements are very close to the true value and to each other.

Front

How can you improve accuracy in measurements?

Back

By using calibrated instruments and ensuring proper measurement techniques.

Front

How can you improve precision in measurements?

Back

By taking multiple measurements and using statistical methods to analyze the data.