(Solved): Q4) The joint density function of two random variables X and Y is fx,y (z,y) = (bzy for 0 x ...
Q4) The joint density function of two random variables X and Y is fx,y (z,y) = (bz²y for 0 ? x ? 3,0 ? y ?2 else for some real value b. (a) Compute the value b. (b) Compute the marginal probability density function fx(x) and the distribution function Fx(z). (c) Compute the mean px of X and the variance a (of).