Graph Showing Quantities of Multiple Categories for Multiple Years

1. What is the most appropriate graph to use for the data collected over several years?
2. What type of graph is used to show how a quantity varies across categories?
3. What is the best type of graph to show categories and changes over time?

What is the most appropriate graph to use for the data collected over several years?

Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group. . . .

What type of graph is used to show how a quantity varies across categories?

Histogram

A histogram is another type of bar graph that illustrates the distribution of numeric data across categories. People often use histograms to illustrate statistics.

What is the best type of graph to show categories and changes over time?

A line graph reveals trends or progress over time and you can use it to show many different categories of data.