Statistical Graph

A visual representation of numerical or statistical data using geometric elements such as lines, bars, points, or areas to convey patterns, trends, relationships, and comparisons. Common types include line graphs (showing trends over time), bar charts (comparing categories), pie charts (showing proportions), scatter plots (showing relationships between variables), and stacked area charts. Statistical graphs are ubiquitous in government publications, news media, scientific papers, and business reports, but they pose significant accessibility barriers for blind and visually impaired people because screen readers cannot interpret the visual information they contain. Making statistical graphs accessible requires either providing equivalent text descriptions, enabling non-visual interactive exploration of the underlying data, or both.