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Which procedure(s) decrease(s) the random error of a measurement: (1) taking the average of more measurements: (2) calibrating the instrument; (3) taking fewer measurements? Explain

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InesWalston

Answer: OPTION * 1

Explanation:

Random error caused by factor which varies from one experiment to another.

And it can be minimised by repeating the experiments and by taking average of all experiments.

Example , we will repeat the titration to get accurate value.

Calibration of instrument comes under determinate errors.