The table gives a car dealers weekly sales for the first 26 weeks of a year. the mean number of cars sold per week is

The mean is the average of the numbers. Therefore, to get the mean you would add the total number of cars sold by the number of weeks. After you get the total number of cars, which is 130, you divide that by the number of weeks the cars were being sold, 26, and you get the final answer of 5 cars sold per week.

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