Find the equation of a circle that has a diameter with the endpoints given by the points A(6, 7) & B(-5, -8).

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.