15, 16, 17, 17, 17, 17, 18, 19
*Remember, the median is the middle number of an ordered data set going from least to greatest :)
So, because our data set is already in order from greatest to least, we simply find the middle by covering up the numbers one by one as we get closer to the middle :)
SO, our median is 17, because it is in the middle of the data set.
~Hope I helped!~