Ashville City Maintenance Chief Leon Tightwad wants to reduce the costs of maintaining the city automobile fleet. Knowing that city cars are kept for only 1 year, Leon feels that the city’s periodic maintenance schedule may cost more than it is worth. Leon randomly selects 75 cars out of 300 and performs no maintenance on these cars unless they break down. At the end of the year, he finds the results shown in the accompanying table. What can you tell Leon about this experiment?
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