Does the choice of the base affect the area of a parallelogram

Yes because the base is equal to top and doubles the distance which affects the inside area.

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.

Ihave, but this question is gonna probably get deleted.