Bigfoot
13
UFO
29
Ghosts
30
2
4
9
2
DQ 1:Sets
2 believed in all three
11 believed in in UFOs and ghosts. But because 2 believed in all three then those are subtracted = 9
6 believed in ghosts and bigfoot minus 2= 4
4 believed in UFOs & Bigfoot minus 2 =2
45 believed in ghosts minus (4+2+9)15= 30
42 believed in UFOs minus (2+2+9)13= 29
21 believed in Bigfoot minus (2+2+4)= 13
Answer: all added gives you 89.
160 surveyed - 89=71
71 people who believe in none
