Stem-and-Leaf Plot

See how to make and read a stem-and-leaf plot.
2 examples and their solutions.

Stem-and-Leaf Plot

Example

For the given values below, make a stem-and-leaf plot.
Use the digits from 5 to 9 as the stem.

81, 56, 74, 52, 78, 81, 77, 91, 85, 60,
75, 69, 97, 84, 70, 67, 80, 74, 74, 88

Solution

81, 56, 74, 52, 78, 81, 77, 91, 85, 60,
75, 69, 97, 84, 70, 67, 80, 74, 74, 88

Stem	Leaf
5	6 2
6	0 9 7
7	4 8 7 5 0 0 4
8	1 1 5 4 0 8
9	1 7

- [1]

[1]

Write the tens in the Stem:
5, 6, 7, 8, 9.
Write the ones in the Leaf.
56
→ Stem: 5 | Leaf: 6
...

↓

Stem	Leaf
5	2 6
6	0 7 9
7	0 0 4 4 5 7 8
8	0 1 1 4 5 8
9	1 7

- [2]
Key: 7|0 = 70 - [3]

[2]

Arrange the Leaf values in ascending order.
(0, 1, 2, ..., 8, 9)

[3]

Pick one value and write the key.
The key shows the meaning of the Stem (tens) and the Leaf (ones).

Example

For the given stem-and-leaf plot,
find the number of values that are greater than 74.

Stem	Leaf
5	2 6
6	0 7 9
7	0 0 4 4 5 7 8
8	0 1 1 4 5 8
9	1 7

Key: 7|0 = 70

Solution

Stem	Leaf
5	2 6
6	0 7 9
7	0 0 4 4 5 7 8
8	0 1 1 4 5 8
9	1 7

- [1]
Key: 7|0 = 70

3 + 6 + 2 = 9 + 2
= 11

[1]

The values greater than 74 are colored:
75, 77, 78, ... .