bar codes are different for every item, they represent what the person is buying so the computer and understand what is being checked out
I use a bar graph to represent my favorite pies, and a pie graph to represent my favorite bars.
Divison
sometimes they can
a bar that tells you how lng
no,a bar graph is not a pictograph,pictograph's represent data by pictures and bar graphs by bars...
They represent a # of X and a # of Y. These are the axis's... -Posted by Anonymous 7th Grader
Yes, it can do.
legend
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I think it represents a frequency.
a bar graph