Pstat120AMT

Pstat120AMT - UNIVERSITY OF CALIFORNIA, SANTA BARBARA...

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UNIVERSITY OF CALIFORNIA, SANTA BARBARA Department of Statistics and Applied Probability PSTAT 120A, Probability and Statistics I Midterm Exam (100 points), 5/8/08 YOUR NAME: ........................... YOUR PERM NUMBER: ......................... YOUR TA’s NAME: ......................... YOUR SECTION TIME: ............................ IMPORTANT : The exam is closed book. Calculators are OK, except cell phones. A formula sheet is provided at the end (you do not necessarily need all the formulas) and space is given to write your answers. Please write all your answers on this exam. You are given 75 minutes to answer 5 questions. Please justify your answers . A numerical answer without explanation is not sufficient for full credit. When you turn it in, please show us your picture ID. Questions start on the next page. GOOD LUCK! 1
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[10 points] In the game of bridge a deck of 52 playing cards is randomly divided into 4 piles of 13 cards each. You are one of the players and I pay you a hundred dollars if you are dealt all 4 aces. What is the expected value of your win? 2
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Pstat120AMT - UNIVERSITY OF CALIFORNIA, SANTA BARBARA...

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