A tree is 20 feet tall. Its shadow is 13 feet long. A boy is 5 feet tall. His shadow is 3 feet 3 inches long. Are the ratios of height to shadow length proportional?

1195 was the store owner's profit.

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.