To answer this question, we need to remember that, in this case, we have that Troy decided to spend three days catching a total of 15 fish each day and counting how many of those were bass.
We can see that he is doing a statistical experiment and the outcomes from this experiment would be the result of doing that series of operations to find the number of basses he could find.
Therefore, as a result of that, he could probably have an approximate value of the real probability obtained using a method whose result will be an empirical probability.
In summary, therefore, the probability that Troy will have is an empirical probability.