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03: Thirty automobiles were tested for fuel efficiency (in miles per gallon). The following frequency distribution was obtained. Class boundaries 7.5-12.5 12.5-17.5 17.5-22.5 22.5-27.5 27.5-32.5

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03: Thirty automobiles were tested for fuel efficiency (in miles per gallon). The following frequency distribution was obtained. Class boundaries 7.5-12.5 12.5-17.5 17.5-22.5 22.5-27.5 27.5-32.5 Find: a. The Mean b. Modal class c. Mean deviation Frequency 3 5 15 5 2

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