What type of graph represents data with bars?

A bar graph is specifically designed to represent data using rectangular bars, where each bar's height or length is proportional to the value it represents. This visual format allows for easy comparison of different categories or groups within the data. The bars can be arranged either vertically or horizontally, providing flexibility depending on the context of the data.

Bar graphs are particularly effective for displaying categorical data, where the distinct categories can be easily identified and compared against each other. This makes it a preferred choice for presenting survey results, frequency distributions, or any dataset where distinct groups need to be analyzed visually.

In contrast, other types of graphs serve different purposes: line graphs are used to show trends over time, pie charts represent parts of a whole, and scatter plots illustrate relationships between two quantitative variables. Each of these other graph types is designed for specific types of data and analytical needs, highlighting the uniqueness of the bar graph in its ability to effectively present categorical comparisons.