Suppose 4 out of 9 people are bowlers and 3 out of every 16 bowlers have their own bowling balls. At the same rates, in a group of 192 people, predict how many you would expect to have a bowling ball.

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.

The area of rhode island is about 1,212 square miles