Can you tell me how close these are to the actual value?

r= - 7.2
r= -1
r= 0.328
r= 0
r= 0.832

To determine how close these values are to the actual value of 0, we can calculate the absolute difference between each value and 0.

1. |r= -7.2 - 0| = 7.2
2. |r= -1 - 0| = 1
3. |r= 0.328 - 0| = 0.328
4. |r= 0 - 0| = 0
5. |r= 0.832 - 0| = 0.832

Based on the absolute differences, the values that are closest to the actual value of 0 are:
- r= 0
- r= 0.328

These are closest to the actual value of 0.