Question

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 0.28 0.36 0.04 ? (a) The probability that a randomly chosen American has type AB blood must be A. 0.04 B. 0.28 C. 0.32 D. Any number between 0 and 1. (b) This probability model is A. continuous. B. discrete. C. equally likely. D. None of the above. (c) What is the probability that a randomly chosen American does not have type O blood? A. 0.72 B. 0.28 C. 0.64 D. None of the above.

          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
0.28
0.36
0.04
?
(a) The probability that a randomly chosen American has type AB
blood must be
A. 0.04
B. 0.28
C. 0.32
D. Any number between 0 and 1.
(b) This probability model is
A. continuous.
B. discrete.
C. equally likely.
D. None of the above.
(c) What is the probability that a randomly chosen American does
not have type O blood?
A. 0.72
B. 0.28
C. 0.64
D. None of the above.

Added by Kevin P.

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