Accuracy and Precision

Front

What is the definition of accuracy?

Back

Accuracy refers to how close a measured value is to the actual (true) value.

Front

What is the definition of precision?

Back

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

Front

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

Back

This indicates high precision but low accuracy.

Front

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

Back

This indicates high accuracy but low precision.

Front

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

Back

This indicates low accuracy and low precision.

Front

Which is more important in scientific measurements: accuracy or precision?

Back

Both are important; accuracy ensures correctness, while precision ensures consistency.

Front

If a weighing balance gives the same reading every time but is not correct, what is it considered?

Back

It is considered precise but not accurate.

Front

What is an example of a situation where high precision is not enough?

Back

In a target shooting scenario, hitting the same spot repeatedly (high precision) but missing the target (low accuracy) is not desirable.

Front

How can you improve accuracy in measurements?

Back

By calibrating instruments and using proper techniques.

Front

How can you improve precision in measurements?

Back

By using more sensitive instruments and taking multiple measurements.