Stem-and-leaf Diagram
A stem-and-leaf diagram is a way of showing ordered data
The stem is the number on the left of the vertical line. The leaves are the numbers on the right of the vertical line.
Always give a key, for example 4 | 3 represents 43
- Example 1. Below are the test results of a group of students
| 58 49 63 31 30 79 56 78 47 60 55 49 57 63 68 47 36 80 |
| Draw a stem-and-leaf diagram, include the key |
| (a) Order the numbers | |
| 30 31 36 47 47 49 49 55 56 57 58 60 63 63 68 78 79 80 | |
| (b) Create the stem-and-leaf diagram | |
| 3 | 0 1 6 | |
| 4 | 7 7 9 9 | |
| 5 | 5 6 7 8 | |
| 6 | 0 3 3 8 | |
| 7 | 8 9 | |
| 8 | 0 | |
| Key: 3 | 0 represents 30 | |
to: 
