To determine the possible combinations of destinations, types of rooms, and types of excursions you can construct a tree diagram listing all options.
-Start with the destinations Cozumel (C) and Jamaica (J)
-Then write the type of hotel room Balcony (B) or Inside view (I)
-Finally, list for each option the four types of excursions Water sports (W), Horseback riding (H), Parasailing (P), and Ziplining (Z)
The diagram is like this:
There are a total of 16 possible combinations between destinations, rooms, and excursions that form the sample space, you can list it as follows:
S={CBW, CBH, CBP, CBZ, CIW, CIH, CIP, CIZ, JBW, JBH, JBP, JBZ, JIW, JIH, JIP, JIZ}