In which type of chart can you effectively show the categories of data as rectangles based on size?

In which type of chart can you effectively show the categories of data as rectangles based on size?

• A. Box plot
• B. Treemap
• C. Column chart
• D. Histogram

Answer: (B)

A treemap is a visualization that displays hierarchical data through nested rectangles. In a treemap, each category of data is represented as a rectangle, with the size of the rectangle corresponding to the value of the data point it represents. This allows for an immediate visual impression of the relative sizes of categories within the hierarchy. The layout is typically designed so that larger data points take up more space, making it easier to see which categories are more significant at a glance. Unlike box plots, which show the distribution of data and highlight median, quartiles, and outliers rather than absolute values, a treemap focuses solely on the size comparison of categories. Column charts and histograms also represent data using bars, but they do so in a linear manner, primarily focusing on one dimension of data (either categories for column charts or ranges for histograms). They do not offer the same hierarchical visualization as treemaps, where the relationship and sizes of data categories can effectively be seen in a two-dimensional spatial format.

A treemap is a visualization that displays hierarchical data through nested rectangles. In a treemap, each category of data is represented as a rectangle, with the size of the rectangle corresponding to the value of the data point it represents. This allows for an immediate visual impression of the relative sizes of categories within the hierarchy. The layout is typically designed so that larger data points take up more space, making it easier to see which categories are more significant at a glance.

Unlike box plots, which show the distribution of data and highlight median, quartiles, and outliers rather than absolute values, a treemap focuses solely on the size comparison of categories. Column charts and histograms also represent data using bars, but they do so in a linear manner, primarily focusing on one dimension of data (either categories for column charts or ranges for histograms). They do not offer the same hierarchical visualization as treemaps, where the relationship and sizes of data categories can effectively be seen in a two-dimensional spatial format.