Statistics › Section B · Descriptive statistics › Topic B.1
Stemplots, line graphs, and bar graphs
Numbers in a list hide their own patterns; the right graph reveals them. This topic covers three displays you can build by hand - stemplots that keep every value, line graphs that trace frequency, and bar graphs for categories - and how to spot the graphs that mislead.
In this topic
- Choosing a display
- Stemplots: every value, kept
- Reading a stemplot
- Side-by-side stemplots
- Worked example: building a stemplot
- Line graphs: frequency across values
- Bar graphs for categories
- Worked example: a bar graph of transport
- Misleading graphs
- Common mistakes to avoid
- Key takeaways
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