13. (9+17)/2=13
Average = 13
(7+9+17)/3= 11
The average is 17.
The average is 15.
13.333 recurring.
The average (or mean) of 25, 17, 33, 9, and 12 is the sum (96) divided by the number of items (5), which is 19.2.
5' 9" on Average, for Males 17 yrs+
9*17=153
Between 9 and 17. 9 being very early and 17 being very late. That makes 13 the average age.
12
17 plus 9 plus 6 plus 16 is a single number whose value is 38. The average of one number is itself.