You will be able to create a Pie Chart
You will be able to create a Bar Chart
Watch: Bar Graph Tutorial
Watch: 3D Pie Chart Tutorial
Review: Adobe Graph Help
Make sure to have Legend Names in Double Quotes "Jon" "Tom"
Fill Color is the Bar!
Stroke Color is numbers on the Chart!
To Select Graph and Legend at the same time use Shift key and select the Graph and Legend you wish to change.
To Bring the Data Panel back select the graph. Object > Graph > Data
the data window should reopen unless the graph is no longer a graph for some reason.