Recent content by peteron

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    PDF of the sum of three continous uniform random variables

    I know how to solve the case of two variables, but got stunned in the case of three variables...
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    PDF of the sum of three continous uniform random variables

    Homework Statement X1, X2, X3 are three random variable with uniform distribution at [0 1]. Solve the PDF of Z=X1+X2+X3. Homework Equations The Attempt at a Solution PDF of Z, f_z=\int\intf_x1(z-x2-x3)*f_x2*f_x3 dx2 dx3 I saw the answer at http://eom.springer.de/U/u095240.htm, but I cannot...