On the blueprint of a house 44 millimeters represents 6 meters. The length of the living room is 33 millimeters on the blueprint. What is the actual length of the living room

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.