Asked by hjhjuk

What is the average (mean) number of 0,3,9,15,18,22,15,9,4?
The answer is 5.6
I add all the number= 95 then divided by 9 =10.6.
Why isn't my answer match the answer 5.6 and What did I do wrong?
Answered by oobleck
10.6 is the mean
No idea what 5.6 is.