Homework Answers
Probability that he wins project A = 0.40
Probability that he wins project B = 0.80
When two events are independent then,
P (A and B) = P(A) × P(B) = 0.40 × 0.80 = 0.32
(a) P (A or B) = P(A) + P(B) - P (A and B)
= 0.40 + 0.80 - 0.32
= 0.88
(b) Probability that he does not win either project = 1 - P (A or B)
= 1 - 0.88 = 0.12
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