Add. 12.6+(–12.6)
a. 25.2
b. 24.2
c. 0
d. –25.2

Reduction: 

12,6 + (-12,6) = 0 

C

You're welcome 

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.