Numbers of Any Magnitude, SMB-001 A cockroach is measured in a school science experiment and its length is recorded as 5.2 cm. What is the upper limit of accuracy of this measurement? (2 marks) Show Answers Only `5.25\ text(cm)` Show Worked Solution `text{Absolute error} = 1/2 xx \text{precision} = 1/2 xx 0.1 = 0.05\ text{cm}` `=>\ text{True length could lie 0.05 cm either side of 5.2 cm measurement.}` `text(Upper limit)` `= 5.2 + 0.05` `= 5.25\ text(cm)`