Wayne has a recipe on a 3-inch-by-5-inch index card that he wants to enlarge to 15 inches long. how wide will the enlargement be?

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.

He is right i did this thing before