orrelation es of y number of cars sold by the number of salespeople. Solve for r2 and explain what r means in this problem. Number of Number of Week Cars Sold Salespeople 1. (b ) 79 it of N 64 49 W N O O 23 UI 52 12.58 Executives of a video rental chain want to predict the suc- line cess of a potential new store. The company's researcher begins by gathering information on number of rentals hain's54 49 UT A W N 46 45 TESTING YOUR UNDERSTANDING 12.57 A manager of a car dealership believes there is a relation- ship between the number of salespeople on duty and the number of cars sold. Suppose the following sample is 12.60 Sh used to develop a simple regression model to predict the ur