Probability of A NOT occuring: P(A') 0.9 A B Probability of B NOT occuring: P(B') 0.85 A B Probability of A and B both occuring: P(ANB) 0.015 AB Probability that A or B or both occur: P(AUB) 0.235 Probability that A or B occurs but NOT both: P(AAB) 0.22 Probability of neither A nor B occuring: P((AUB)') 0.765 A B Probability of A occuring but NOT B: Probability of B occuring but NOTA: 0.085 B 0.135 (AB)