Precision of measurement describes how exact, reliable and repeatable unit used to
\measure something.
\ \The measurement is 3.75 meters. The units are in meters.
The measurement is precise to within 0.5 meter.
\So, a measurement of 3.75 meters could be between (3.75 – 0.5 = 3.25) 3.25 meters
\and (3.75 + 0.5 = 4.25) 4 .25meters.
The measurement is precise to within 0.5 meter.
\A measurement of 3.75 meters could be between 3.25 and 4.25 meters.