74. The proportions of blood phenotypes in the U.S. population are as follows: A B AB O...

Question:

74. The proportions of blood phenotypes in the U.S. population are as follows:

A B AB O

.40 .11 .04 .45 Assuming that the phenotypes of two randomly selected individuals are independent of one another, what is the probability that both phenotypes are O? What is the probability that the phenotypes of two randomly selected individuals match?

P(Ar ¨ B) P(A ¨ B

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