Higher June 2022 Paper 1R Q13

13 Here is the number of runs scored by a baseball team in each of its 15 games this season.
The number of runs have been arranged in order of size.

0 1 1 3 5 6 7 7 8 9 9 12 12 15 16

Work out the interquartile range of the number of runs.

(2)