Probability that a randomly chosen person has type ab blood

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Question: Blood types. Choose a person at random and record his or her blood type. Here are the probabilities for each blood type:

Blood Type:       Type O        Type A       Type B       Type AB

Probability:          0.4              0.3            0.2               ?

(a) What must be the probability that a randomly chosen person has Type AB blood?

(b) To simulate the blood types of randomly chosen people, how would you assign digits to represent the four types?

Reference no: EM131639458

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