Julio says, "If you subtract 12 from my number and multiply the difference by -5, the result is -40." What is Julio's number?

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.