A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying
table. Write the linear regression equation that represents this set of data, rounding
all coefficients to the nearest hundredth. Using this equation, estimate the homework
grade, to the nearest integer, for a student with a test grade of 57.
Homework Grade (x) Test Grade (y)
X | Y
83 | 70
72| 70
71 | 73
81 | 84
77| 80
89| 78
82| 69