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.
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Pro Tip
For large numbers, split each stem into two (0–4 leaves and 5–9 leaves). This gives more resolution and a clearer distribution shape without losing the individual data values.
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Did You Know?
Stem-and-leaf plots were popularized by statistician John Tukey in his 1977 book 'Exploratory Data Analysis'. Tukey also invented the box-and-whisker plot and gave us the word 'bit' (binary digit) in computing.
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