Question

Determine the accuracy and precision in the following set of measurements if true value is 11.690 ml.  Measurement -I: 9.225 ml, 12.027 ml, 25.509 ml  Measurement -II: 10.110 ml, 9.998 ml, 11.001 ml​

Answer 1

Answer:

The second set of measurements given is correct.

Explanation:

The accuracy and precision are seen with the help of the true value which comes. If the number of values that we calculate comes nearer to the actual true value we say that the precision is correct. If any of the values are very close to the true value itself then we say that the accuracy is maintained. Therefore in the above-given question, the true value is given to be 11.690ml. In the first set of measurements that is, 9.225 ml, 12.027 ml, 25.509 ml, two values are precise but none of them are accurate.

Whereas in the second set of measurements that is, II: 10.110 ml, 9.998 ml, 11.001 ml​, the values are precise and close to the true value itself which means they have accuracy also. Hence the second set of measurements is correct.