Respuesta :

CrystalQueen
9, 10, 15, 17, 18, 18, 18
                  ↑
17 is your median

Hope this helps!
Hello There!

The median is the middle number in a set of data when in order.
First step is to order the data:
9, 10, 15, 17, 18, 18, 18
There are 7 numbers.
7 + 1 = 8
8/2 = 4
The 4th number is the median.

In short, the median is 17.

Hope This Helps You!
Good Luck :) 

- Hannah ❤