Fall2009Exam2

Fall2009Exam2 - STAT 225 Fall 2009 Exam 2 Your name Your...

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STAT 225 – Fall 2009 Exam 2 Your name: ___________________________________________ Your Instructor: ________________________________________ Your class time (circle one): 7:30 8:30 9:30 10:30 11:30 12:30 1:30 2:30 3:30 4:30 Note: Show your work on all questions. Unsupported work will not receive full credit. All answers should be in decimal form and taken out to at least two decimal places. Do NOT leave answers in the form of combinations, factorials or exponentials. You are responsible for upholding the Honor Code of Purdue University. This includes protecting your work from other students. You are allowed the following aids: a one-page 8 ½” x 11” handwritten (in your handwriting) cheat sheet, a scientific calculator, and pencils. Instructors will not interpret questions for you. If you do have questions, wait until you have looked over the whole exam so that you can ask all of your questions at one time. You must show your student ID (upon request) and turn in your cheat sheet when you turn in your exam to your instructor. Turn off your cell phone before the exam begins! Question Points Possible Points Received 1 2 3 4 5 6 7 8 9 Cheat Sheet Total 100
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1. You and a group of 5 friends decide to go out for pizza and bowling. On any given turn the probability a person will get a strike is 0.2 and the probability a person will get a spare is 0.6. On rare occasions, the chute will not return a ball with probability 0.005. Each turn is independent of any other. State the distribution and the parameters for each of the following situations. If an approximation can be made, to receive full credit you must name both the exact and approximate distributions. ( 3 points each ) a. Upon arriving, the 6 of you go to a rack containing different colored bowling balls to make
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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.

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Fall2009Exam2 - STAT 225 Fall 2009 Exam 2 Your name Your...

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