Answer 4

The right hand target shows a scatter of shot that is inaccurate and imprecise.

Question 5

The temperature of a solution was measured three times and values of 24.5, 27.0 and 25.0 ^oC were recorded. The mean value of these temperature readings is -

24.5 ^oC      24.75 ^oC      25.0 ^oC      25.5 ^oC      25.75 ^oC      26.0 ^oC      27.0 ^oC