Practice question · Sort into groups
Sort each description into accuracy or precision.
Groups: Accuracy · Precision
- Results cluster tightly together
- Improved by averaging many trials
- Results are close to the accepted value
- Low systematic error
- Low random error
- Improved by calibration
Hints
- One concept is about closeness to truth, the other about repeatability.
- A tight cluster far from the target scores well on only one of them.
Show the answer
Accuracy: Results are close to the accepted value, Low systematic error, Improved by calibration
Precision: Results cluster tightly together, Low random error, Improved by averaging many trials
Why
Accuracy relates to systematic error; precision relates to random error.
Practise Measurement, Uncertainty, and Error Analysis
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