If the radius of the circle above is 3 in, what is the circumference of the circle? A. 12 in B. 9 in C. 6 in D. 3 in

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.