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E1Afall10 - PubH 6450 Exam 1 NAME Lecture Instructor(please...

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(1) PubH 6450 NAME:_____________________________________________ Exam 1 (10/07/10) Lecture Instructor (please circle): Susan Telke Andy Mugglin Directions: This is an open-book, open-notes exam; however, sharing of books, notes, handouts, homework or lab papers, calculators, or verbal comments is not permitted. You may use a calculator of your choosing, but laptop computers and any kind of internet connection are not permitted. For multiple choice questions, please clearly indicate your answer(s). For short answer problems, please show all relevant work necessary to arrive at a solution, as partial credit will be awarded. Correct answers without appropriate justification will generally not receive full credit. DO NOT LOOK AT OR BEGIN THE EXAM UNTIL THE INSTRUCTOR ANNOUNCES THAT THE EXAM IS STARTING. You will have from 1:25pm to 3:20pm to complete this exam, so do not spend too much time on any one problem. With such a big class, there is always someone who needs to take the exam early or late. After the exam is over, DO NOT DISCUSS THIS EXAM with anyone who was not in this same room taking it with you. We anticipate returning the exams in class on Tuesday. Advice on rounding: We suggest that you round calculations (mean, s.d., etc.) to 2 decimal places (if the data are whole numbers), 3 decimal places (if the data are known to the nearest 0.1), etc. Probabilities are usually rounded to 3 or 4 decimal places, but no more. Good luck!!
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(2) Problem 1 (16 points): Suppose we have a group of dialysis patients with the following characteristics: 62% have diabetes (type I or type II) 23% have heart disease A) If we randomly choose a patient and we denote the event A as the event that the patient has heart disease and B as the event that the patient has diabetes, which of these is an expression denoting dialysis patients with heart disease but without diabetes (circle all that apply)?
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