(c)The probability distribution function of a discrete random variable X is as follows. Find 1 3 4 P(X=x) | 0.3 0.2 0.1 0.3 0.1 (i) The expected value of X, E(X) (ii) The variance of V, Var(X) Solution (d) The continuous random variable has probability density function given by Osx<2 f(x) = 23x<4 , otherwise Find the mean and variance

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