Question 1
Consider the following data on the growth of cactus grafts under controlled conditions.

Find the regression line y = mx + b.
◦ y =1.50 x + .7
◦ y = 1.33x + .21
◦ y = -2.10x + .2
◦ y = 13x + 8.19
Question 2
Consider these midterm and final exam scores for three students in a calculus class.

Find the regression line y = mx + b.
◦ y = -x + 3.1
◦ y = -0.61x + 124.2
◦ y = 0.256x - 12.3
◦ y = -0.65x + 100.4