Spaceship Earth at Epcot Center in Florida is a 180 foot geosphere. Estimate its volume by assuming it is a sphere with diameter 180 ft. Round your answer to the nearest million cubic feet.

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.

Do you mean conversion factor?