Stage 9 - Q6 - 4 marks
20252
The diagram records task-completion times. Find both medians and decide which group is typically faster by this measure.
Group A
Stem
Group B
4
7
9
9
8
5
2
4
6
8
9
0
3
5
7
9
6
1
2
4
7
0
2
2
6
8
7
0
\(\text{A key: }7\mid 4=47\text{ s}\)
\(\text{B key: }4\mid 8=48\text{ s}\)
Hint
For completion times, lower is faster.