Suppose that ? represents the number of cars sold at a dealership in a randomly selected single day. The probability distribution of ? is given in the table below. ? 4 5 6 7 8 9 10 ?(?) 0.02 0.10 0.18 0.28 0.31 0.09 0.02 If you wish, you can click to download the data in your preferred format. CrunchIt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Calc What is the mean number of cars, ? , sold per day at the dealership? Give your answer in decimal form precise to two decimal places.

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