exam1b-f97 - COURSE: MSCI 3700 EXAM 1 INSTRUCTOR: Dr....

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COURSE: MSCI 3700 Name: EXAM 1 S.S.#: INSTRUCTOR: Dr. Spalding SEMESTER: FALL 97 Consider the following data for answering the next 6 questions. -8, 1, -5, 1, 7, 7, -3 1. Calculate the value of the Mean from the data. a. -5 b. -8 c. 0 d. 10 e. 8 2. What is the value of the Median? a. 1 b. -12 c. -5 d. 10 e. -1 3. Select the number of modes a. No Mode b. Unimodal c. Bimodal 4. What is the value of the Variance? a. 28.40 b. 10 c. -5 d. 33
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-33 5. What is the value of the Standard deviation? a. 5.05 b. 5.74 c. 10.00 d. -5.77 e. -7.33 6. What is the value of the Range? a. -18 b. -15 c. -10 d. 12 e. 15 7. Suppose that 20% of all college students smoke cigarettes. A sample of 18 is selected randomly. What is the probability that between 1 and 4 ( inclusive ) students smoke? a. 0.3600 b. 0.7284 c. 0.6984 d. 0.2355 e. 4.05% 8. A student takes an exam containing 11 multiple choice questions. The probability of choosing a correct answer by knowledgeable guessing is 0.4. If the student makes knowledgeable guesses, what is the probability that he will get exactly 6 questions right? a. 0.1471 b. 1.471 c. 14.471 d. 0.0097 e. 0.0701 9. The auto parts department of an automotive dealership sends out an average of 7.2 special orders daily. The number of special orders follows a Poisson distribution. What is the probability that, for any day, the number of special orders sent out will be
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exam1b-f97 - COURSE: MSCI 3700 EXAM 1 INSTRUCTOR: Dr....

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