Summer2009Exam2

Summer2009Exam2 - STAT 225 Summer 2009 Exam 2 Your Name: _...

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STAT 225 – Summer 2009 Exam 2 Your Name: ___________________________________________ Your Instructor: ________________________________________ Your class time (circle one): 8:40 9:50 11:00 1:00 Note: Show your work on all questions. Unsupported work will not receive full credit. All answers should be in decimal form and should be exact, or to at least taken out to two decimal places. 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 18 2 8 3 15 4 14 5 8 6 9 7 13 8 15 Total 100
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1. The manufacturing company of goldfish snack crackers makes 60% of their goldfish with smiles. For each of the following scenarios, write the correct distribution and its parameters. If an approximation can be used, write both the exact and the approximate distributions and parameters to receive full credit. (3 points each)
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Summer2009Exam2 - STAT 225 Summer 2009 Exam 2 Your Name: _...

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