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4) What are the expected value and variance of the following probability distribution? RANDOM VARIABLE X 1 2 PROBABILITY 0.05 0.10 0.15 0.15 0.20 0.35

4) What are the expected value and variance of the following probability distribution? RANDOM VARIABLE X 1 2 PROBABILITY 0.05 0.10 0.15 0.15 0.20 0.35 4 5 6

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