A manager of a car dealership believes there is a relationship between the number of salespeople on duty and the number of cars sold. Suppose the following sample is used to develop a simple regression model to predict the number of cars sold by the number of salespeople. Solve for r2 and explain what r2 means in thisproblem.

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Number of Cars Sold 79 64 49 23 52 Number of Salespeople 1 Week