Question: o A random variable X that has the characteristic function as shown below where N is the last digit in your student number. 1 W)

o A random variable X that has the characteristic function as shown below where N is the last digit in your student number. 1 W\") = W 6) Find the mean of X. 7) Find the value of the second moment of X. 8) Prove that the variance of X a} = 3N 2. 9) Using the inequalities that we studied, give an upper bound for P[X 2 4]

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