In the steam and leaf plot, the steam represents the tens and the units, and the leaf represents the tenths of each daily earning.
Then, to represent $37.30 we have to write 37 on the steam column and 3 on the leaf column, that is, the key is 37 | 3 = $37.30
Applying this rule to the values of the table, we get:
Steam | Leaf
37 | 3
38 | 1 1 3
39 | 0 8
40 |
41 | 7 8
42 | 5 5
