Physics (AS & A Level) · May / June 2019 · Paper 12 · Question 7

A man of mass 75.2 kg uses a set of weighing scales to measure his mass three times. He obtains the following readings. | | mass / kg | |---|---| | reading 1 | 80.2 | | reading 2 | 80.1 | | reading 3 | 80.2 | Which statement best describes the precision and accuracy of the weighing scales?

1. Anot precise to ± 0.1 kg and accurate to ± 0.1 kg
2. Bnot precise to ± 0.1 kg and not accurate to ± 0.1 kg
3. Cprecise to ± 0.1 kg and accurate to ± 0.1 kg
4. Dprecise to ± 0.1 kg and not accurate to ± 0.1 kg

As printed in the paper