1. Stem and leaf diagrams.
Stem and leaf diagrams show the distribution of the data like a bar chart with the
numbers forming the bars.
The diagrams can also be used to find measures such as the median.
Example 1.
Ann measured 21 sunflower leaves (in mm) as part of her science project.
Draw a stem and leaf diagram to show the shape of this data.

2. 14 15 16 17 18 7 7 7 8 14 15 16 17 18 7 7 7 8 1 2 3 5 8 9 1 2 3 5 8 9 6 7 5 4 6 4 5 6 6 7 2 1 8 1 2 8 9 9 8 8 9 9
KEY: means 142 mm

3. Example 2.
Mr Jones has 20 students. They all recently took an exam. The marks were:
Draw a stem and leaf diagram to show the shape of this data. 10 11 12 13 14
KEY: means 124 marks.

4. 14 15 16 17 18 14 15 16 17 18
KEY: means 142 mm

5. Example 2.
Mr Jones has 20 students. They all recently took an exam. The marks were:
Draw a stem and leaf diagram to show the shape of this data. 10 11 12 13 14
KEY: means 124 marks.