Question: Consider the following data on a discrete random variable X: X 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Consider the following data on a discrete random variable X: X 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -2.456 -3.388 -6.816 1.531 1.737 -1.254 -1.164 1.532 2.550 0.296 -0.979 -4.259 2.810 -1.608 -0.575 a. Calculate the mean and variance of X. b. Standardize X and check that the mean and variance of X are 0 and 1 respectively. c. Calculate the skew and kurtosis of X

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