Long description
An ordered stem and leaf diagram for the teachers’ times, with “stem” values 0 to 5 as in figure 4.
Leaf values: 8 next to stem 1,
7 and 8 next to stem 2,
1, 3, 3 and 6 next to step 3
7 next to stem 4
1 next to step 5
There are no leaves next to stem 0.
There is also a key showing that 1 line 8 means 18.