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Consider, once again, problem 1. Suppose that, for a given person, the
probability of type O blood is 0.5, the probability of type A blood is 0.34,
and the probability of type B blood is 0.12.
(a) Find the probability that each of the antigens will react with this
person’s blood.
(b) Find the probability that both antigens will react with this person’s
blood.

du-lab.org/system/files/teaching/statistics/Exam_midterm_solution.pdf