2. 

3. 

4.  Blood comes in four types: O, A, B, and AB. The
percentages of people in the United States with
each blood type are shown below:
4%
10%
O
46% A
B
AB
40%

5. 1) What is the probability that two people getting
married both have blood type O? What assumption
are you making?
4%
10%
O
46% A
B
AB
40%

6. 2) What is the probability that two people getting
married both have the same blood type? What
assumptions are you making?
4%
10%
O
46% A
B
AB
40%