Question: 2. (20 points) Two random variables R and B have a joint distribution. (a) (5) Are B and R independent? (Explain your answer, do not

2. (20 points) Two random variables R and B have a joint distribution. (a) (5) Are B and R independent? (Explain your answer, do not just say "yes" or "no") (b) (5) What is the probability that B is greater than or equal to R? (c) (10) What is correlation coefficient PBR? 2 R 0 1 2 0 1/8 1/4, 0 B 1 0 1/4 1/4 2 0 0 1/8

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