What is the average of 12.5, 18.4, 15.5, 16.6, and 20.4?

15.58 17.50 16.68 18.48

16.68

Sum of 12.5, 18.4, 15.5, 16.6, and 20.4 = 12.5 + 18.4 + 15.5 + 16.6 + 20.4 = 83.4 Average = \(\frac{83.4}{5}\) = 16.68