Answer :
For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:
5+10+12+4+6+11+13+5 then divide that by 8
The answer to your question is: 8.25
5+10+12+4+6+11+13+5 then divide that by 8
The answer to your question is: 8.25