Answer: 15
Step-by-step explanation:
First, sort the list from least to greatest. This leaves us with:
2.3, 3.1, 3.7, 13.1, 16.9, 20.5, 24.1, 24.5
The list is 8 numbers long, so the median is going to be the average between the two middle numbers. The two middle numbers are 13.1 and 16.9.
Finding the average, we get (13.1+16.9)/2 = 30/2 = 15.