These are some of the advantages for different graph:
Bar Graphs - best for comparing data
Circle Graph - best for comparing categories when using percents
Pictograph - best for comparing categories that can easily be counted using symbols
Line Graph - best for showing changes of data over time
Double Bar Graph - best for comparing two sets of data
Messing with graphs
1. have one really big bar in the graph so you can make it can catch your eye .
2. you can brake the axis so it make the information look different then the normal one .
3. have the same colors and put a different color to make one bar stand out.
How I can improve my test
i would improve my test is that i should have colored my bars. i could of write a conclusion more better and explain it more better. And also make a better way to misrepresent my graph by making 1 bar wider .