In graphing the "line of best fit" in the regression method
A) one would expect to not see any residuals scattered around the cost line.
B) none of the data points have to touch the cost line.
C) some of the data points must touch the cost line.
D) a straight line will not exist within the relevant range.

Question

Quizplus · Accepted Answer

In a line of best fit, the line minimizes the distance of all data points from it, but not all points need to touch the line. Residuals, or differences between observed and predicted values, are expected.

In Graphing the "Line of Best Fit" in the Regression