The cumulative distribution function of a random variable X defined in the interval 2 to 4 is F(x) = (1/26)[2x²+x -10] %3D To find the density function of XI would have to: Select one: O a. Find the moment generating function and take the first derivative and evaluate at 0 O b. Take the derivative of F(x) with respect to x O c. Compute the integral of F(x)

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