You use it when you are comparing data.
It depends on the kind of data you have, but a scatter plot or bar graph would be best.
probably orographic bar graph would work the best!
Any kind of graph can be used for discrete data.
Any kind of graph can be used for quantitative data.
it depends on what kind of data you are desplaying. if there is only one type of data that is all related and conected, a line graph would be a good thing to use.
a data i like a graph it could be any kind of graph pie,bar,line graph
you could use almost any kind of graph if you label it. But i would stay away from pie graphs. I would use a box and whisker plot.
Bar Graph
Bar Graph
Bar Graph
a line graph
A bar graph