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UFOs

29

Ghosts

30

 

 

Bigfoot

13

9

2

4

2

How many people surveyed believed in at least one of these things?


UFOs & Ghosts: 11-2=9
UFOs & Bigfoot: 4-2=2
Bigfoot & Ghosts: 6-2=4

Only UFOs: 42-9-2-2=29
Only Ghosts: 45-4-9-2= 30
Only Bigfoot: 21-2-2-4= 13
None of these three:71
160-71=89

A total of 89 people believed in at least one of these things.