Find the value of each expression when a = 3
b = 2
c = -5

1) 2a - c
2) 3a + c - 5
3) 2a + b + 4c
4) 5c

Please provide explanations so I understand! Thank you!

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.