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Unformatted text preview: 4.56, 4.58, 4.64 (in 8th edition textbook) Part 3: Brain Teasers (20 bonus points. Your final score will not exceed 190 points): We have 100 graded homework sheets on the desk. The first student was in hurry and grabbed one sheet randomly (that means he might take anybodys homework with the equal chance). The following students checked the pile one by one: if one found his own sheet, he took it; otherwise, he would also randomly take one from the remaining pile. Question: You were the last student to get your homework, whats the chance you found your own work sheet?...
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 Spring '08
 Mendell

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