Whoever answers I’ll mark brainliest! The answers are not 8 and 9 gallons or 8,000, 9,000 gallons.

They are the facts that mary is a citizen

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.