11. Quiz: Histograms

Quiz: Histograms

Histograms and Bar (or Column) charts are easily confused. Histograms plot distributions of quantitative (numerical) data. Numerical ranges of the data are grouped into bins and charted. Bar or column charts plot counts of categorical data. Consider the following two similar-looking charts and answer the quiz question.

Histograms

Using the charts A and B above, check all that apply.
SOLUTION:
  • B is a histogram because bar heights are associated with the count of binned quantitative data.
  • A is not a histogram because bar heights are associated with the count of a category.

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