The data points in Exercise In each of Exercises, we have presented two linear equations and a set of data points. For each exercise, a. plot the data points and the first linear equation on one graph...

The data points in Exercise
In each of Exercises, we have presented two linear equations and a set of data points. For each exercise,
a. plot the data points and the first linear equation on one graph and the data points and the second linear equation on another.
b. construct tables for x, y,ŷ e, and e2 like Table (page 626).
c. determine which line fits the set of data points better, according to the least-squares criterion.
TABLE
Determining how well the data points in Table are fit by (a) Line A and (b) Line B
a.

b.

TABLE Three data points

Line A: y=3-0.6x, Line B: y=4-x
Data Points

ŷ =9-2x