the area of Arizona covered by dessert is about 5,880 square miles. If 42% of the total area is desert, about how many square miles is Arizona's total area?

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.