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In: Chemistry

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.

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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Expert Solution

Solution

From the given options we can only decrease the random error by \textit{taking the average of more measurements}. It will make the work more credible because more measurements means more data and more data means more certainty.

If we had less measurements we would have less certainty, hence a greater chance of random error.

Calibrating an instrument can \textit{contribute to precision of measurements} but does not guarantee a decrease in random error of measurement.

 

Therefore,  (1) Taking the average of more measurements.

SUN BUNRA answered 2 years ago
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