To interpret the slope of 1/2 in the context of Ava's hitting attempts and kills, we can say that for every hitting attempt made, Ava scores about 0.5 (or 1/2) of a kill.
Since the slope indicates the number of kills per hitting attempt, the statement that correctly reflects this interpretation is:
Ava has about 1 kill for every 2 hitting attempts.
This statement accurately describes the relationship represented by the slope.