When filling your gas tank, if you pay c dollars for g gallons of gas, you have the following table.

g c
4 15.80
8 31.60
11 43.45
15 57.25Choose all of the following statements that are true.


Select one or more:

a.
The range is {15.80, 31.60, 43.45, 57.25} .


b.
The set of independent values is {15.80, 31.60, 43.45, 57.25}.


c.
The range is {4, 8, 11, 15}.


d.
none of these


e.
The set of independent values is {4, 8, 11, 15}.