What fraction of a pond is 70 pence

70 pence/1 pound = 70 pence /100 pence = 70/100 = 7/10 or 0.7

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.