Chapter 2 Assignment 21. Describe the relationship between Curb Weight and Fuel Economy of various cars. A. Positive, relatively strong relationship B. Positive, strong relationship C. Negative, relatively strong relationship D. Negative, strong relationship 22. Using the line of best fit on the graph, calculate the slope of the line of best fit. Do not worry about units. Hint: Remember to use two points on the line of best fit to calculate slope! A. 0.0027 B. 0.0030 C. 333 D. 370