Question: Problem 5. (+15pts) If a random variable X is defined such that E((X -4)2) = 11, and E((X -1)2) = 5,find u and o2. Hint:

Problem 5. (+15pts) If a random variable X is defined such that E((X -4)2) = 11, and E((X -1)2) = 5,find u and o2. Hint: Expand the above equations in terms of a = E(X2) and b = u = E(X), and solve the system for a and b. Use a and b to determine of and u

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