DQ: Accuracy and Precision

Front

What is the definition of accuracy?

Back

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

Front

What is the definition of precision?

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

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

Back

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

Front

What does it mean if data is precise but not accurate?

Back

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

Front

What is an example of quantitative data?

Back

An example of quantitative data is 'The flower is 8 cm tall.'

Front

What is an example of qualitative data?

Back

An example of qualitative data is 'The flower is red.'

Front

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

Back

It means that the measurements are neither close to each other nor close to the actual value.

Front

What is the relationship between accuracy and precision?

Back

Accuracy and precision are related but distinct concepts; a measurement can be accurate but not precise, precise but not accurate, both, or neither.

Front

What is the bullseye in the context of accuracy?

Back

The bullseye represents the true value or target that measurements aim to hit.

Front

Why is it important to distinguish between accuracy and precision?

Back

Distinguishing between accuracy and precision helps in evaluating the reliability of measurements and understanding the quality of data.