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and of = 1 >> > For Q. 88 - 91: Let X and Y be two independent random variables such that My =1, ox

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and of = 1 >> > For Q. 88 - 91: Let X and Y be two independent random variables such that My =1, ox =2, My =-2, (88) The value of E(X-3Y+1) is equals: (A) 11 (B) 8 (C) 38 (89) The value of Var(X-3Y+1) is equals: (D) 40 (A) 11 (B) 8 (C) 20 (90) The value of E(Y2) is equals: (D) 6 (A) 1 (B) 2 (C) 0.8 (91) The highest lower bound for P(-4

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