Dwight is paid a commission of $5.75 for each class ring he sells. how much did he earn by selling 74 class rings?

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.