Problem 4

Lauren and Andy have both conducted an experiment to measure the length of their school building. Lauren's measurement result is: L = (45.0 ± 2.0) m, Andy's result is L = (45.0 ± 0.5) m.

Lauren says: 'we have come to the exact same conclusion, the building is 45.0 m long.'

Andy responds: 'No, although we have the same mean value, my result is much more precise.'