A mail carrier delivers 6,300 lives of mail on a regular day. If 1,260 pieces are junk. What percent is not junk

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.