
Answer:
There are 14 outcomes in the sample space.
x= { x/x ∈ b, where b≠0 }
Step-by-step explanation:
The tree diagram is as follows
                                                  Sample Space
Margo→→→→Beach (b)→→→→→→→1 destination→→→→→→→5 condos        5
   ║          ║→→→→→→→→→→2 destination→→→→→→→→→4 condos    4
   ║
   ║
   ║→→→→→Mountain (m) →→→→→→→→1 destination→→→→→→ 1condo     1
                  ║→→→→→→→→→→2 destination→→→→→ 1condo     1
                   ║→→→→→→→→→→ 3destination→→→→→ 3 condos   3
Part a:
There are 14 outcomes in the sample space .
5+4+1+1+3= 14
Part b:
Margo picks a beach destination in set notation is
x= { x/x ∈ b, where b≠0 }
x such that x belongs to b ( beach destination) and b is not equal to zero.