a what is the probability that a person selected at random f

a. what is the probability that a person selected at random from U.S. population has a blood type that is type AB given that the person is Rh+?
b. what is the probability that a person selected at random from the US population has a blood type that is Rh negative given that the person is Type O?

Solution

probability that a person selected at random from U.S. population has a blood type that is type AB given that the person is Rh+= 3.4/ (35.7+8.5+3.4+37.4) =0.04

probability that a person selected at random from the US population has a blood type that is Rh negative given that the person is Type O = 6.6/(37.4+6.6) = 0.15