What's the formula to find the average of a set of numbers?

Explanation:
To find the average of a set of numbers you first add all the numbers up in the set and then divide by the total amount of numbers.
For example say your set consist of the following:
32,40,29,45,33,33,38,41
You would add them up:
32+40+29+45+33+33+38+40=290
Now you would take the total 290 and divide by the total amount of numbers, for our case we have a total of 8 numbers.
$\frac{290}{8}=36.25$
Our average is 36.25