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4.40 Given a random variable with pdf f(x). 7. 2e* o<x determine EX] and Var[X] Show transcribed image text
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![4.40 Given a random variable with pdf f(x). 7. 2e* o<x determine EX] and Var[X]](https://media.cheggcdn.com/media%2Ffaa%2Ffaa1b7a2-7e40-4e22-88f6-ecece0da9914%2FphpKMZdjS.png)
4.40 Given a random variable with pdf f(x). 7. 2e* o<x determine EX] and Var[X] Show transcribed image text
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