How much longer is a 1-inch button than a 3/4-inch button

The answer is 1/4 because 3/4 is 1/4 away from 1

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.