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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 3 0.15 4

4) What are the expected value and variance of the following probability distribution? RANDOM VARIABLE X 1 2 PROBABILITY 0.05 0.10 3 0.15 4 0.15 5 0.20 6 0.35

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