Keys are drawn on some graphs(i.g. line graph) so you know which lines of data are what
Keys, compass, and data
error bar can be drawn for statistical comparison of bars and graphs.
In the context of graphs or charts, keys expalin what is being represented and how.
It is called graph paper because it is often used to draw graphs on. The printed grid on it allows neat graphs to be drawn using rulers.
Any kind of properly drawn graph does. That's what graphs do.
Some graphs do, but some don't. It depends upon the variables.
tables, diagrams, bar graphs, forms, maps
Graphs are a convenient way to impart information to some people, and graph paper simplifies the process of producing graphs.
Foreign keys isnt drawn at a ER-diagram. The relation drawn between entities is enough to show, that der is at foreign key
Some data.
Indexed was started by Jessica Hagy in 2006. She states that originally the site allowed her "to make fun of some things and make sense of others without resorting to doing actual math. Comic are drawn on indexed cards and are composed of graphs, scatter plots or Venn diagrams, which generally have a humorous connection.
There are many graphs which while you can usually use most of them no matter what experiment you are doing that is not always true, nor is it the right use of a graph. some of the most likely graphs you will probably come across , or for that matter need to use are bar graphs, line graphs, pie graphs, and picture graphs.