Question: A random variable X has a uniform density function f (x) = 1/5 on 20 x 25. (a) Find E (X ) and

A random variable X has a uniform density function f (x) = 1/5 on 20 ≤ x ≤ 25.

(a) Find E (X ) and Var (X ).

(b) Find b such that Pr (X ≤ b) = .3.

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