Let X represent the number that occurs when a 5-sided red die is tossed and Y the number that occurs when a 5-sided green die is tossed. Complete parts (a) and (b) below. (a) Find the variance of the random variable 6X - Y. ² 6X-Y = 74 (Simplify your answer.) (b) Find the variance of the random variable X + 2Y - 3. +2Y-3 = (Simplify your answer.)

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