One liter of fruit punch contains 0.045 liter of real fruit juice. Of this fruit juice, 1/30 is lemon juice. What percent of the fruit punch is lemon juice?

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.