Watch Out For Crocodiles
This weekend it will rain with probability \(\frac{1}{4}\), be sunny with probability \(\frac{1}{4}\), and hail baseballs otherwise. If it rains, then there is a 50% chance that I will see a crocodile. If it is sunny, then crocodiles will hide themselves from me with probability \(\frac{3}{8}\). If it hails, then I will see a crocodile with complete certainty.
What is the probability I see a crocodile this weekend? Please answer as a fraction of the form x/y.