Lauren went to Lee's Nails to get a pedicure. Her pedicure cost $20.00 and she wanted to give a 15% tip. How much would she leave as a tip?

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.