SOLUTION: Fifteen persons reporting to a Red Cross center one day are typed for blood, and the following counts are found: Blood group: O A B AB #of persons: 4 3 7 1 If one person is

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Question 723954: Fifteen persons reporting to a Red Cross center one day are typed for blood, and the following counts are found:
Blood group: O A B AB
#of persons: 4 3 7 1
If one person is randomly selected, what is the probability that this person's blood group is: AB? Give exact answer in terms of fractions.
P(AB) =

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
AB/TOTAL PARTICIPANTS.
1/15=.067 OR 6.7% ANS.