Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. lou's car had 6.2 gallons in the 14-gallon tank on the coldest day of the year. lou filled the tank with gas that cost $3.70 per gallon. how much did lou spend on gas?

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.