Blood comes in four types: O, A, B, and AB. The percentages of people in the United States with each blood type is shown below.

Blood comes in four types: O, A, B, and AB. The percentages of people in the United States with each blood type is shown below.

  • Draw out the sample space for two people getting married with all the different combinations of blood types. Assume the two persons are independent. (Hint: The sum of the probabilities must equal 1.00.)
  • What is the probability that two people getting married both have blood type O?
  • What is the probability that two people getting married both have the same blood type?
  • Do you think that the assumption of independence is reasonable for blood type for a couple?

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