Jon and jim painted a fence. jon painted 1/4 of the fence and jim painted 5/12 of the fence. how much of the fence did they paint total?

1/4 = 3/12
       +5/12
        8/12 = 4/6 = 2/3

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.