A bar chart is useful when you want to do a quick side-by-side comparison of categorical data (e.g., countries, colors, types of software, modes of transport, marital statuses).

3rd level Presenting data - graphs, charts and diagrams Types of diagram Statistical information can be presented in diagrams, graphs and charts. The type you use will largely depend on the sort ...

When examining data on a graph, there are certain things to look for, such as the overall trend, the rate of change, and any anomalies . When describing what a graph shows, it is best to deal with ...