<u>Answer:
</u>
Measurement error
<u>Explanation:
</u>
<u>Measurement error</u> is called an observational error. it is the difference between the quantity and its true value. It includes
<u>Random error:</u>
It is a natural occurring error that is expected to be an experimenter.
Random error is expected but even all sample is a random error.
<u>Systematic error:
</u>
It occurs due to the use of false instruments that affects all the measurement.
For example, if you are measuring the weight of athletes and the instrument you are using show 1 pound less weight it will show for all athletes one pound less wight called systematic error.
The error gets grown when you use that procedure in data measurement.