STAT 2500 Final: STAT 2500 Final Exam Fall 2003
31 Jan 2019
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Please enter your answers for multiple choice questions by circling the appropriate letters below (2 points for each correct answer) X i=1 x2 i = 200, 000 for class 1 and. X i=1 x2 i = 180, 000 for class 2. Fall 2003: suppose a multiple choice exam consisting of three questions with three answers for each (a, b, c). You are told that the answers a, b and c are each used once. Since the exam is written in a foreign language you can not read, you can only guess at the correct answers. You decide to answer all of the questions with a. The table below lists the r & d expenditures (in millions of dollars) of 20 major companies in north america for 1995. Let x be the random variable of the number on the die observed after a toss. Then the mean and the variance 2 of x are (a)
