SOLUTION: A group of 400 people has the following blood type distribution: 140 have blood type O, 90 have blood type A, 120 have blood type B, and 50 have blood type AB. If a person is selec
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Question 1120768: A group of 400 people has the following blood type distribution: 140 have blood type O, 90 have blood type A, 120 have blood type B, and 50 have blood type AB. If a person is selected at random from the group, what is the probability that this person has blood type B? Answer by rothauserc(4718) (Show Source):
