Select all the correct equations. Which equations have no real solution but have two complex solutions?
3.2 - 51 = -8
212 = 61 - 5
120 = 9r2 + 4
-12 - 10r = 34

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.