Which of the following chart types makes use of 'binned' data? Select all that apply.

Question

Options

• AGantt Chart
• BBullet chart
• CHistogram
• DTreemaps

• B
  3% (1)
• C
  94% (33)
• D
  3% (1)

Explanation

Histograms are built entirely around the concept of binning - continuous data is grouped into adjacent, equal-width intervals (bins), and the height of each bar represents the frequency (or count) of values falling within that range. Without bins, a histogram simply cannot be constructed.

Distractors:

• Gantt Chart (A): Displays project tasks against a timeline; it maps tasks to time durations, with no aggregation or binning of data.
• Bullet Chart (B): A compact bar chart used to show a single measure against a target and qualitative ranges - no binning involved.
• Treemap (D): Visualizes hierarchical/part-to-whole relationships using nested rectangles sized by value; data is not grouped into intervals.

Memory tip: Associate Histogram with "How Is This Ordered?" - the whole point is to order and group (bin) a continuous variable to reveal its distribution shape. If you're grouping values into ranges to count frequency, you're making a histogram.

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