Aaden has a bag that contains strawberry chews, apple chews, and watermelon
chews. He performs an experiment. Aaden randomly removes a chew from the bag,
records the result, and returns the chew to the bag. Aaden performs the experiment
31 times. The results are shown below:
A strawberry chew was selected 4 times.
A apple chew was selected 7 times.
A watermelon chew was selected 20 times.
Based on these results, express the probability that the next chew Aaden removes
from the bag will be a flavor other than apple as a fraction in simplest form.