Simplify: (xy-x^2y)(2x-3xy+y)

The answer should be: 2x^2-4x^2y^2+xy^2-2x^3y+3x^3y^2

If this is not the answer message me and I will try again.

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.