Answer 11

For the plot below, the data for species B exhibits an outlier.

Question 12

The extension, x, of a spring is 1.3 ± 0.1 m when a force, F, of 4.5 ± 0.5 N is applied to it. The force constant, k = F / x, for the spring with its associated error can be calculated, using worst case scenarios, to be -

k = 3.5 ± 0.1 N m^-1

k = 3.5 ± 0.3 N m^-1

k = 3.5 ± 0.4 N m^-1

k = 3.5 ± 0.6 N m^-1

k = 3.5 ± 0.7 N m^-1