Refer to the exhibit. Which two statements are true? (Choose two.)

Question

Exhibit

Options

• AThat is a heatmap projected on top of a geographic map.
• BThat is a treemap projected on top of a geographic map.
• CThe color red usually stands for lower values and the color blue usually stands for higher values.
• DAnother suitable visualization technique for this image would be line graphs.
• EThe color blue usually stands for lower values and the color red usually stands for higher values.

• A
  92% (34)
• B
  3% (1)
• C
  5% (2)

Explanation

A is correct because the visualization described is a heatmap - a technique that uses color gradients to represent the intensity or magnitude of values across a surface - overlaid on a geographic map, making it a geospatial heatmap. E is correct because in standard heatmap color conventions, blue (cool colors) represents lower intensity or values, while red (warm colors) represents higher intensity or values - think of a "heat" metaphor where red = hot = high.

B is wrong because a treemap displays hierarchical data as nested rectangles, not a color-gradient overlay on geography. C is wrong because it reverses the standard color convention - red is typically high, not low. D is wrong because line graphs show trends over time or continuous data along axes, making them unsuitable for representing geographic spatial density.

Memory tip: Think of a stove burner - red means hot (high values) and blue means cold (low values). This "temperature = heat color" association locks in the correct red/blue mapping for heatmaps every time.

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