In a group of 1,200 adults, there are 300 vegetarians. what is the ratio of nonvegetarians to vegetarians in the group?

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.