The length of a rectangle is 9 more than the width. The area is 136 square yards. Find the length and width of the rectangle.

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.