What is the greatest number of museum tickets hat can be bought for $21

I think the greatest number of tickets that can be bought for $21 is 14.so to find my answer I looked in the graph and when I got to 21 and go down I get 14

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.