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Problem 1: Let X-M(3, 7) and Y- Exp(3). (a)(5 pts) Calculate the expected value of 2X -6Y. (b)(8 pts) Assume that X and Y are

Problem 1: Let X"-M(3, 7) and Y- Exp(3). (a)(5 pts) Calculate the expected value of 2X -6Y. (b)(8 pts) Assume that X" and Y are independent and calculate the variance of 2X-6Y

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