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 is a measure of how close measurements are to each other when repeated under the same conditions.

Front

What does high accuracy and high precision indicate about a set of data?

Back

It indicates that the data points are close to each other and also close to the actual value.

Front

What does low accuracy and high precision indicate about a set of data?

Back

It indicates that the data points are close to each other but far from the actual value.

Front

What does high accuracy and low precision indicate about a set of data?

Back

It indicates that the data points are close to the actual value but vary widely from each other.

Front

What does low accuracy and low precision indicate about a set of data?

Back

It indicates that the data points are neither close to each other nor close to the actual value.

Front

In a bullseye target, what does it mean if all darts are clustered together but far from the center?

Back

It means the results are precise but not accurate.

Front

In a bullseye target, what does it mean if all darts are scattered but average near the center?

Back

It means the results are accurate but not precise.

Front

Which weighing balance is more accurate: A, B, or C?

Back

C is the most accurate weighing balance.

Front

Which weighing balance is more precise: A, B, or C?

Back

B is the most precise weighing balance.