Let X be a random variable with density function fx(.) such that: fx(s) = kes for...

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Let X be a random variable with density function fx(.) such that: fx(s) = kes for s> 0 and fx (s) = 0 for s 0. Here k> 0 designates a constant. a)Determine k. b)Determine P(X 3). Let X be a random variable with density function fx(.) such that: fx(s) = kes for s> 0 and fx (s) = 0 for s 0. Here k> 0 designates a constant. a)Determine k. b)Determine P(X 3).