What is the distance between the points (3, 7) and (15, 16) on a coordinate plane?

Square root of (3-15)^2 +(7-16)^2
Square root of (-12)^2 + (-9)^2
Square root of 144+81
Square root of 225
The distance is 15

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.