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Recommend doing Totals, before preceding to Questions
C D E F
A 5 11 16 8 40
B 2 3 5 7 17
7 14 21 15 57
P(AUF)= 40/57 + 15/57 - 8/57 = 47/57 P(A or B) = P(A) + P(B) - P(A and B)
P(D)= 14/57
P(BnD)= 3/57
P(B|F)=
= 7/15 P(A|B) = P(A and B)/P(B)
P(F|B)=
= 7/17