Question 15
The median of the list $n,n+3,n+4,n+5,n+6,n+8,n+10,n+12,n+15$ is 15. What is the mean of the list?
A. 6
B. 8
C. 12
D. 15
E. None of the above
**Editorial note for this self-study exercise:** Enter the numerical mean, without the option letter.
A. 6
B. 8
C. 12
D. 15
E. None of the above
**Editorial note for this self-study exercise:** Enter the numerical mean, without the option letter.