3. For his after-school job, Doug painted 25 fence posts in 350 minutes. If it took
Doug the same amount of time to paint
each fence post, how many minutes did
it take him to paint 1 fence post?

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.