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Here is the probability model for the blood type of a randomly chosen person in the...

Here is the probability model for the blood type of a randomly chosen person in the United States.

Blood Type O A B AB
Probability 0.25 0.33 0.1 ?


(a) What is the probability that a randomly chosen American has type AB blood? Please use 2 decimal places.


(b) Maria has type B blood. She can safely receive blood transfusions from people with blood types O and B. What is the probability that a randomly chosen American can donate blood to Maria? Please use 2 decimal places.


(c) What is the probability that a randomly chosen American does not have type O blood? Please use 2 decimal places.

Math   Statistics-And-Probability   
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