How much time does Alex have? For each job, use information from the table to calculate the number of hours Alex could work before he has to buy his plane ticket.

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.