16 Joel has been earning money by doing yard work in his neighborhood. He earns $4.50 per hour. Which graph represents this relationship and shows the amount of
money Joel earns per hour?

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.