Question

what do you mean by precision? According to you are instrument of high Precision accurate??

Answer 1

Dear student,

Precision is defined as the closeness between two or more measured values to each other. Suppose you weigh the same box five times and get close results like 3.1, 3.2, 3.22, 3.4, and 3.0 then your measurements are precise.

An instrument of high precision may be more or less accurate depending upon the errors. A high precision instrument will have low random errors. Random errors in experimental measurements are caused by unknown and unpredictable changes in the experiment. These changes may occur in the measuring instruments or in the environmental conditions.

However, it may have systematic error as well. Systematic errors in experimental observations usually occurs when we are not using and handling the measurement systems properly.
In case of high precision instrument but more systematic errors, the accuracy is reduced.

Hence, accuracy and precision are 2 independent terms.

Regards!