What is a bar graph?
Here is an example of a bar graph
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=bar+graph&btnG=Google+Search
the screen on a stereo is a bar graph
Here is an example of a bar graph
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=bar+graph&btnG=Google+Search
the screen on a stereo is a bar graph