| [ QuizWit ] in KIDS 글 쓴 이(By): iLUSiON (띠띠빤쮸) 날 짜 (Date): 2005년 12월 29일 목요일 오전 07시 07분 11초 제 목(Title): Re: probability quiz that's the book i used as a textbook. ^^ if i want to point it, problem 2 (a) is in the textbook. (b) is not. i made it up. i am sure problem 1 can be solved using MGF since it involves infinite series and expectation. but why anyone want to solve that way. there is a trick in the textbook that does not use MGF. it basically uses the following recurrence relation. E(X) = 1/2( 2+ 3 E(X)) and solve it.:) regading cdpark's comment, once in a while why don't you write some interesting quize instead of dit-da-ri. you don't want to spend next year that way. do you? don't make me pity you like i pity pictor. iLUSiON - le plus grand de tous http://cyworld.nate.com/ilusion |