Which equation is a linear function? A. y = 3x
B. y = 3x(x - 5)
C. y = 5 - 3x
D. y = 5x2 - 3

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.