Solve the summation from n equals 2 to 10 of negative 4 plus 5 times n. 189
234
235
286

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.