You can use Gnumeric to create, format and print graphs based on information on the worksheet, for example to show annual sales figures, or the distribution of revenue.
You can create many types of graphs including line graphs, bar and column graphs, scatter charts and pie charts, and can add to or alter many aspects of the graph's appearance by tapping on the area of the graph you wish to change.
To create a graph:
Gnumeric offers a range of descriptive, bivariate and multivariate statistical analyses including Correlation and Analysis of Variance (ANOVA). These tests are accessible from the Tools menu.