Thirty automobiles were tested for their fuel efficiency in miles traveled per gallon of fuel using two different fuels. The following frequency distribution are obtained for each fuel type: Fuel A Fuel B Class Frequency Class Frequency (mi/gal) 8 - 12 3 5 - 11 4 13 - 17 5 12 - 18 3 18 - 22 15 19 - 25 13 23 - 27 5 26 - 32 7 28 - 32 2 33 - 40 3 a.) Determine the standard deviations for the fuel efficiency of each fuel type. b.) Which type of fuel has greater variation in its fuel efficiency?

The price of a car when it is new is $5500.When it's 5 years old,the price is $500.Find the cost of the car after 3 years

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