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Final exam Dec 2006, omit 15, 18, 19, 23-26, 27, 28, 35, 44, 53, 58, 61, 74, 76, 77

# Final exam Dec 2006, omit 15, 18, 19, 23-26, 27, 28, 35, 44, 53, 58, 61, 74, 76, 77

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Math 1P98 December 8 2006 page 2 of 26 Part A 1 mark for each question 1. The grocery bills for a week for a sample of four households were \$112.30, \$95.10, \$134.18, \$87.50. The standard deviation of these is a. \$107.27 b. \$20.72 c. \$17.94 d. \$21.34 e. none of the above 2. The class width of the temperature histogram of C1, shown here, is a. 9 b. 12 c. 3 d. 11 e. none of the above 3. The modal class of the histogram a. has a midpoint of 6 b. has the same midpoint as the class containing the median. c. is greater than the median class d. is 14 4. Using the dot plot shown to the right, the sample with the largest standard deviation is: a. b. c. d 5. Using the dot plot to the right the sample with the smallest mean is a. b. c. d
Math 1P98 December 8 2006 page 3 of 26 6. Consider the following Minitab output, where the variable is the temperature at a winter vacation. Cumulative Distribution Function Normal with mean = 34 and standard deviation = 3 x P( X <= x ) 30 0.09121 Which of the following statements is true? a. The probability the temperature is over 34 is 0.09121 b. The probability the temperature is less than 30 is 0.09121 c. The probability the temperature is greater than 30 is 0.09121 d. the probability the temperature is greater then 34 is 0.09121 Use the following information for the next 6 questions The distance run outside per week and the place of residence is shown below for a sample of people who regularly run. under 10 km

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Final exam Dec 2006, omit 15, 18, 19, 23-26, 27, 28, 35, 44, 53, 58, 61, 74, 76, 77

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