Find the median of 4.5, 7.5, 9, 9, 9.2, 9.3, 10, 10, 10.5 and 13

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