UFOs
29
Ghost
30
BigFoot
13
9
2
4
2
MGF1106 Broward College 05/28/17
n(u) = 160
n(ufo) = 42
n(ghost) = 45
n(bigfoot) = 21
n(ufo n ghost) = 11
n(ghost n bigfoot) = 6
n(ufo n bigfoot) =4
n [(ufo n bigfoot)n ghost] = 2
29+30+13+9+2+2+4 = 89
n (U) = 160 - 89 = 71
n (believers) = 89
n (non-believers) = 71
