A collector of trading cards records the sale prices (in dollars) of a particular card on an online auction site, and puts the results in a stem-and-leaf plot:
| 0 | 5 8 9 |
| 1 | 0 0 0 3 4 4 5 5 5 5 6 9 9 |
| 2 | 0 0 0 0 5 5 9 9 |
| 3 | 0 0 0 5 5 |
| 4 | 0 0 5 |
| 5 | |
| 6 | 0 |
Answer the following questions about the data:
- How many prices are represented?
- What prices represent the five most expensive cards? The five least expensive?
- What is the full set of data?
OpenStax Contemporary Mathematics, 8.2 Visualizing Data, exercise 9