- Mrs. Gonzalez has a box that contains 20 prize tickets for 5 different prizes. Every Friday, students with good behavior take turns choosing a prize ticket from the box without looking. Each student returns the prize ticket to the box after reading it. The chart below shows the prize tickets chosen by students last Friday.
| Prize ticket | number of times chosen |
| free time | 9 tallies |
| treasure chest | 3 tallies |
| book | 5 tallies |
- 2
- 5
- 10
- 15