UFOs
42
Bigfoot
21
Ghosts
45
4
11
6
2
160 Person Survey
42 people believed in UFOs
21 people believed in Bigfoot
45 people believed in Ghosts
11 believe in both UFOs and Ghosts
6 believe in Ghosts and Bigfoot
4 believe in UFOs and Bigfoot
2 believe in all three
89 of the 160 people surveyed believed in at least one of the three.
(42+45+21-11-6-4+2=89)
