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Question 7 Exemise A. Let D be a random variable whose mat is Molll"10/(ll - 4."). (It actually exists. Do not try to find its infinite table. you will no! need it.) Find HO 1. Question 8 ' Exercise 8. | Let D be a random variable whose mgf is MDlll" 10/[11- Cr). (It actually exists. Do not try to nd its infinite table: you will not need it.) Find E (D 2). Question 9 Exercise C. Let D be a random variable whose mg! is MDill' 10/(11' C". (It actually exists. Do not try to fund its infinite table: you will not need it.) Find VariD )