727
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 tenth. Using this equation, find the projected test grade,
to the nearest integer, for a student with a homework grade of 72.
Homework Grade (x) Test Grade (y).
52
65
78
71
76
84
56
68
72
78
O Search
82
70
73
84
45
60
57
77