Winter2011Exam1

Winter2011Exam1 - Winter 2011 FORM K Name Last:_ First: _...

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Winter 2011 FORM K Name Last:___________________ First: __________________ Exam 1: Chapters 1,2,3 Class Time:________________________ Directions: Print your NAME and CLASS TIME on THIS EXAM Print your NAME and CLASS TIME on your SCANTRON. • Write FORM K on your SCANTRON. • Each question has exactly one BEST answer. There are 21 questions. • You may write on this exam. There is no scratch paper allowed. • Each question is worth 5 points for a total of 105 points. This includes 5 bonus points! • If you have no note page, you must write NO NOTES on your SCANTRON. • Put your SCANTRON and PAGE of NOTES inside your EXAM. Before you start packing up your things, turn in your EXAM and SCANTRON. Then go back to your desk to pack up your materials. When your exam is returned, you will get back all materials you turned in. • Turn your cell phone OFF. Any noise from a cell phone will signal that your exam is over. • FAILURE TO FOLLOW ALL INSTRUCTIONS WILL COST YOU THE 5 BONUS POINTS! __________________________________________________________________________________________ 1. At UC Berkeley, a researcher compiled data on how long it takes to complete a Ph.D. degree after enrolling in a graduate program for several majors. Three people completed a Ph.D. Using the data in the table below, which one finished soonest relative to their major? Major Time (years) taken to complete PhD Average time (years) to complete Ph.D in Major Std. Deviation (years) to complete Ph.D in Major Annabeth Astronomy 7.2 6.1 2.3 Bao Biology 6.9 5.7 2 Cesar Chemistry 6.7 5.8 1.8 Who finished the soonest relative to their program? A. Annabeth B. Bao C. Cesar D. Unable to determine 2. For the following data, which of the following is the LEAST useful measure of central tendency? 30, 30, 30, 40, 41, 42, 43, 45, 46, 47. A. Mean B. Median C. Mode D. They are all equally useful
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For questions 3-5 , use the following: Twenty-five De Anza College math instructors were asked how many times per week they go to the grocery store. The partial results are given in the table below: Number of times per week gone to the grocery store Frequency Relative Frequency Cumulative Relative Frequency 0 1 1 5 2 3 3 6 2 TOTAL 25 3. How many of the math instructors go to the grocery store exactly 2 times per week? A. 8 B. 12 C. 13 D. 14 4. Which of the following values are potential outliers, based strictly upon the mathematical formula? A. 0 B. 3 and 6 C. 0, 3 and 6 D. There are no potential outliers 5. What percent of these math instructors go to the grocery store at most 2 times per week? A. 92% B. 12% C. 56% D. 80% 6. Consider the following box plot: 1 2 3 4 7 Which of the following is the best interpretation of the data? A. There are no data values of 6.
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This note was uploaded on 11/27/2011 for the course MATH 10 taught by Professor Plum during the Fall '11 term at DeAnza College.

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Winter2011Exam1 - Winter 2011 FORM K Name Last:_ First: _...

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