SOLUTION: During one month, a blood donation center found that: 45.8% of donors had the A antigen 14.2% of donors had the B antigen 4.1% of donors had the A antigen and the B antigen

Question 833989: During one month, a blood donation center found that:
45.8% of donors had the A antigen
14.2% of donors had the B antigen
4.1% of donors had the A antigen and the B antigen
84.7% of donors were Rh+
87.2% of the donors had the B antigen or were Rh+
Find the percent of donors that:
a. have the A antigen or the B antigen
b have the B antigen and are Rh+

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
During one month, a blood donation center found that:
45.8% of donors had the A antigen
14.2% of donors had the B antigen
4.1% of donors had the A antigen and the B antigen
84.7% of donors were Rh+
87.2% of the donors had the B antigen or were Rh+
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Find the percent of donors that:
a. P(have the A antigen or the B antigen) = 45.8+14.2 = 60%
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b P(have the B antigen and are Rh+) = P(B+)+P(Rh+)-P(B+ or Rh+)
= 45.8+54.7-60 = 40.5%
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Cheer,
Stan H.
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