Frequency Histogram

Updated 28 Sep 2026

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What it is
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  a bar graph representing a Frequency Distribution, with bars sized according to each class's frequency
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Interpretation
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  intervals represent quantitative values, with adjacent bins normally drawn without categorical gaps
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  with equal-width bins, frequency can be represented directly by height
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  with unequal-width bins, use frequency density so bar area represents frequency
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Distinguish from
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  a bar chart compares cateogries; a histogram represents a quantitative distribution
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Related
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  Frequency Distribution
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  Broken Axis

Linked references 7