How can the coefficient of determination be interpreted? The coefficient of determination is the fraction of the variation in new-vehicle sales for that can be explained by the variation in new-vehicle sales for and is represented by The remaining fraction of the variation, , is unexplained and is due to other factors or to sampling error.

The table shows the numbers of new-vehicle sales (in thousands) in the United States for Company A and Company B for 10 years. The equation of the regression line is y = 0.982% + 1,244.59. Complete parts (a) and (b) below. New-vehicle sales 4,134|3,920|3,565|3,438|3,25213,10212.856|2.502| 1.933] 2.085 (Company A), x be 4.916|4,.355/4,838|4,737|4,628|4 445/4,663|/3,848|2,957| 2,793 (Company B), y (a) Find the coefficient of determination and interpret the result. = Round to three decimal places as needed.)