Summer2011Exam1 - STAT 225 Summer 2011 Exam 1 Name Instructor Class Time(Circle One 8:40-9:40am 9:50-10:50am 11:00am-12:00pm 1:00-2:00pm Show work

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STAT 225 - Summer 2011 - Exam 1 Name: Instructor: Class Time (Circle One): 8:40-9:40am 9:50-10:50am 11:00am-12:00pm 1:00-2:00pm Show work for full credit. Unsupported work will NOT receive full credit. All answers should be in decimal form: no fractions, permutations, com- binations, or exponential forms. Round all answers to at least 2 decimal places. You are responsible for upholding the Honor Code of Purdue University. This includes protecting your work from other students. You are allowed pages 8.5”x11” handwritten cheat sheets and a scientific calculator. Instructors will not interpret questions, tell you if youre on the right track, or check any answers for you. Only legitimate questions will be answered. You must turn in your Cheat Sheet at the end of the exam and may be asked to show your student ID. Turn off your cell phone before the exam begins. Question Points Possible Points Received 1 12 2 15 3 12 4 12 5 13 6 12 7 12 8 11 Cheat Sheet 1 Total 100
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1 Jared’s family has purchased a LOT of beer to be enjoyed over the 4 th of July holiday weekend. They bought a 12 pack each of Goose Island’s 312 and Bells’ Oberon, two 12 packs each of Corona and Blue Moon, and two 24 packs of Bud Light Lime all in coolers and completely covered by ice. For each of the following scenarios, state the distribution and parameter(s). If an approximation is appropriate, state the exact and approximate distributions for full credit. (3 points each) 1.1 Jared goes up to get the first round of beer for family and friends. He randomly grab 4 beers. Let C represent the number of Corona that he grabbed. 1.2 The bathroom is occupied by someone 20% of the time. Let T represent the number of the bathroom trips until Jared is able to use the bathroom for the first time. 1.3 Jared usually drinks 2 beers an hour. Let D represent the number of beers Jared drinks in the first three hours of his vacation. 1.4
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This note was uploaded on 02/06/2012 for the course STAT 225 taught by Professor Martin during the Spring '08 term at Purdue University-West Lafayette.

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Summer2011Exam1 - STAT 225 Summer 2011 Exam 1 Name Instructor Class Time(Circle One 8:40-9:40am 9:50-10:50am 11:00am-12:00pm 1:00-2:00pm Show work

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