Hello There!
To find the mean we have to add up all the numbers and divide by how many numbers there are.
6+15+16+20+13+5+10+16
Now, I will add 2 numbers at a time to make it easier for myself.
21+36+18+26
Once I add up these numbers, I will get a sum of 101
Finally, I divide 101 by 8 and get a quotient of 12.625