A tank holds 15 L of water the capacity of a cup is 3/10 of a Liter How many cups of water does the Tank hold

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.