1 point Given the least squares regression line y 2 48 1 63x and a coefficient of determination of 0 81 the coefficient of correlation is A 0 90 B 0 85 C 0 85 O D 0 90 A regression analysis between sales in thousands of dollars and advertising in hundreds of dollars resulted in the following least squares line y 75 6x This implies that if advertising is 800 dollars then the predicted amount of sales in dollars is A 4 875 dollars B 487 500 dollars C 12 300 dollars O D 123 000 dollars Note In order to get credit for this problem all answers must be correct Preview My Answers Submit Answers