The Quick Change Oil Company has a number of outlets. The numbers of oil changes at the Oak Street outlet in the past 20 days are as follows: 61 61 81 73 79 76 40 52 78 68 58 49 48 69 83 65 71 72 70 64 The data are to be organized into a frequency distribution using 5 classes. b. What class interval would you suggest? (Round the final answer to the nearest whole number.) 68.5 c. What lower limit would you recommend for the first class? Awwww.nlilv d. Organize the information into a frequency distribution and determine the relative frequency distribution. (Round the final answers to 2 decimal pleces.) Relative Prequency frequency Units 40 to under 49 to under 58 to under 67 to under 76 to under 49 58 67 76 85 Total e. Comment on the shape of the distribution. (Enter the intervals in ascending order.) up to and up to The greatest concentration is in classes

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