Blood types can be classified as either Rh+ or Rh-
88% of the Chinese population has Rh+ blood.
Let A = the event that a Chinese person has Rh+ blood.
Let B = the event that a Chinese person has Rh- blood.

1. What is the probability that two randomly selected Chinese people both have Rh+ blood? Show work.

2. What is the probability that neither of two randomly selected Chinese people have Rh+ blood? Show work.

3. What is the probability that at least one of two randomly selected Chinese people have Rh+ blood? Show work.

4. What is the probability that exactly one of two randomly selected Chinese people have Rh+ blood?
Indicate the sample space of blood types using a tree diagram to help answer the question.

5. Indicate the sample space of blood type combinations for three selected Chinese people.

6. What is the probability that exactly one of the three has Rh+ blood? Show work.

7. What is the probability that at least one of the three has Rh+ blood? Show work.

8. What is the probability that all three have the same blood type? Show work.