Answer:
The experimental probability that Tim hits the bull's-eye is

Explanation:
Tim throws darts at a dartboard that has numbers 1 through 20 and a bull's-eye in the middle.
Tim throws a dart 40 times, and he hits the bull's-eye 16 times.
Experimental probability is the ratio of the number of hits/success to the number of trials.
So, the experimental probability that Tim hits the bull's-eye is =
or 0.4.