Since the number are already list in least to greatest, you can start crossing out from the start and from the end going inward,
4.5 7.5 9 9 9.2 9.3 10 10 10.5 13
Since there are two #'s in the middle, add them
9.2 + 9.3 is 18.5 the divide it by two because there are 2 numbers
Median=9.25
