Test time left: 59:0 The CDF (cumulative distribution function) F(x) of a discrete random variable for x=(-3,-2,-1,1,2,3} is given below. Find the PMF (probability mass function) and the expected value and variance of X. X 1 2 3 4 5 F(x) 3/9 6/9 1 1/9 8/9

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