SOLUTION: How do I find the mean of 12,-8,-9?

Algebra ->  Average -> SOLUTION: How do I find the mean of 12,-8,-9?      Log On


   

Question 988787: How do I find the mean of 12,-8,-9?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Add them and divide by the number of them, which is three here.
They add up to minus 5
Divide by 3, -5/3
That is the mean. -1 2/3 or -1.66666 (repeat) are alternative ways to write it.