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probability question Let X be the continuous random variable with the probability density function f (x) = 10 S (2x + 5)/44 if1 x- 5

probability question

Let X be the continuous random variable with the probability density function f (x) = 10 S (2x + 5)/44 if1 x- 5 otherwise (a) [6 points] Find E(X) and Var(X). (b) [10 points] Find the cumulative distribution function of X

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