Question: 4. The probability distribution of random variable X is given below: x 2 P(x) 0.4 0.6 A second random variable is defined as follows: Z

4. The probability distribution of random variable X is given below: x 2 P(x) 0.4 0.6 A second random variable is defined as follows: Z =4X2 -1. What is oz (rounded to four decimal places)

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