It should consist of a short description of the variables which are plotted.
You have to have a title
our freedom not yours!
Yes, without exception.
All graphs must have a title, an axis, labels, intervals, and a scale. You can remember this using the acronym TAILS: title, axis, intervals, scale.
Pie graphs are good for showing a percent of something.
maybe you can draw some Canadian soldiers, the Canadian flag, natives, some graphs?
Yes.
contents, index, graphs diagrams pictures title
A title, labeled axes (for graphs), markings on the axes (again, for graphs) and units of measurement. You could use any of the above, based on your context
There are a few good things about graphs. Graphs help gather data making it easier for people to short things out.
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well...not sure if you know this but bar graphs already ARE bar graphs, the good news is you don't have to transform them... so half your work is already done XD!