Final answer:
The percent error is 73.33%.
Step-by-step explanation:
To find the percent error, you need to compare the actual number of throws it took to dunk Mr. King with the estimated number of throws. The formula for percent error is |(actual - estimated)/estimated| * 100. In this case, the estimated number of throws was 15, but it actually only took 4 throws. So the percent error would be |(4 - 15)/15| * 100 = 73.33%.