Group C : 32.1°C , 31.9°C, 31.8°C makes the most precise measurements of the object's temperature.
Precision :The degree of similarity between study results of the experiment if they were performed today under comparable conditions.
If repeated measurements yield similar results, the measurement is considered precise (or repeated surveys).
It means how closely all the results are related .
Therefore, there should be less difference between the measurements of all the results.
In option (a) , there is a difference of 1° in all the results.
In option (b) , there is a difference of approximately 1.5° in all the results.
In option (c), there is only 0.2° difference in all the results.
In option (d) , there is a difference of 3° in all the results.
Therefore, All the option of group (c) are closely related.
Hence, Group (c) 32.1°C, 31.9°C, 31.8°C makes the most precise
measurements of the object's temperature.
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