In the diagram below, BC is an altitude of AABD. To the nearest whole unit, what is the length of CD?
B
30
A
O
16ο
Α. 52
Β. 58
C, 44
D. 56

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.