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There are 4 blood types in humans: O, A, B and AB. The percentage of people with each blood type in a particular region is

There are 4 blood types in humans: O, A, B and AB. The percentage of people with each blood type in a particular region is shown in the table.

Blood type O A B AB

Percent in Population 46 40 10 4

a) What is the probability that two people getting married in this region both have blood type O?

b) What is the probability that at least one partner getting married in this region has blood type O?

c) What is the probability that two people getting married in this region both have the same blood type?

d) What assumptions are you making in parts a to c? Are these assumptions reasonable?

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