While eating lunch joey ate 25% of the cookies he had in his bag. There were 12 cookies in his bag. how many did joey eat?

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.