(Answered) Question blood types choose a person at random and record

Statistics

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?

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