Question: 5. Find the expected value of the discrete random variable X having the probability Ix ' 2i 7 Then nd the expected value and variance

5. Find the expected value of the discrete random variable X having the probability Ix ' 2i 7 Then nd the expected value and variance of g[X) = (3X - 9) distribution f (x) = x=-1,0,1,3. SMG2013 Probability 6. Given X has a the following distribution 1/2 x=1 f(x)=x1 13 Find the mode of the distribution. 9. Find the skewness of X with the following pdf 19" x > 0 x = | f( ) TO elsewhere

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