in 2014, a state park recreational pass cost $8.50. starting in 2015, the parks and recreation department will increase this cost by $0.80 a year.

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.