Thursday, July 18, 2013

Histogram

 
A histogram is a bar graph of a frequency distribution in which the widths of the bars are proportional to the classes into which the variable has been divided and the heights of the bars are proportional to the class frequencies. These maps are similar to bar graphs but the x axis is numbers on these maps and also the bars are all connected. This histogram above shows what score each student got on final exam and how many students it was who got each score.
 
 
 

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