Practice question · True or false
A bar chart is the wrong display for a continuous variable because its separated bars imply the categories are distinct.
Hints
- What does the gap between bars say?
- A histogram's touching bars say the scale is continuous.
Show the answer
True
Why
True. Bar charts encode categories, so the gaps assert there is nothing between them, false for a continuous measurement. A histogram's bars touch to show the axis is continuous, and its bar widths carry the bin size, which is information a bar chart has no way to express.
Practise Data Visualisation
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More questions on Data Visualisation
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