Exam-style question
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Which of the following is a characteristic of random error?.
- A.It can be corrected by calibration.
- B.It affects the accuracy of measurements.
- C.It can be reduced by averaging multiple measurements.
- D.It is always the same for each measurement.
Model answer
What a good answer should say
- It can be reduced by averaging multiple measurements.
Explanation
Why this works
Random error is inherent in any measurement and can be minimized by taking multiple readings and averaging them. This characteristic distinguishes it from systematic error, which cannot be corrected through averaging.
Common mistake
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