By eating 1 egg, 1 cupcake and 1 slice of pizza, a child consumes 303mg of cholesterol. If the child eats 3 cupcakes and 4 slices of pizza, he or she takes in 89mg of cholesterol. By eating 3 eggs and 1 cupcake, a child consumes 847mg of cholesterol. How much cholesterol is in each item

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.