Question: Let X be a random variable with distribution f(x) 4(500)+ (x + 500) 5 X30. a. (3 points) Find the expected value of X b.

Let X be a random variable with distribution f(x) 4(500)+ (x + 500) 5 X30. a. (3 points) Find the expected value of X b. (3 points) Find the variance of X C. (4 points) Find the probability that P(400

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