How to Calculate Stem and Leaf Plot
What is Stem and Leaf Plot?
A stem-and-leaf plot displays numerical data where the leading digit(s) form the 'stem' and trailing digits form the 'leaves'. It shows the distribution's shape while preserving individual data values — a quick alternative to a histogram.
Step-by-Step Guide
- 1Sort data from smallest to largest
- 2Stem = all digits except the last (e.g., tens digit)
- 3Leaf = the last digit (units digit)
- 4Draw stems on the left; leaves on the right
Worked Examples
Input
Data: 12, 15, 18, 23, 25, 31, 35, 38
Result
1 | 2 5 8
2 | 3 5
3 | 1 5 8
Stem=tens, leaf=units
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