Question

Define error in measurement.
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Answer 1

Explanation:

Difference between the actual value of a quantity and the value obtained by a measurement. Repeating the measurement will improve (reduce) the random error (caused by the accuracy limit of the measuring instrument) but not the systemic error (caused by incorrect calibration of the measuring instrument)...

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Answer 2

The difference between the measured value and the actual value. There may arises a difference between their measurements.

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