Question

What is the mean of 12,24,8,& 17?

Answer 1

15.25
You find the mean by adding all the numbers.
12+24+8+17=61
Now you divide the product by a number of numbers. 
61 divided by 4= 15.25
Hope this helps!   :)

Answer 2

The mean is 15.25

12 + 24 + 8 + 17 = 61

Divide that by the total number of variables (4) to get 15.25.