Jill needs 4 pounds of peanut butter to make peanut butter and
jelly sandwiches for a party. She buys peanut butter in jars. The
weight of peanut butter in jars is given in ounces. How many
ounces of peanut butter does Jill need to make the sandwiches?

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.