In what sense does "Y-predicted" provide only an "educated guess" of Y?
A) Exact predictions of Y are extremely rare: exactness is achieved only when the relationship between X and Y is perfectly linear.
B) Y-predicted typically loses precision when X and Y are both interval-ratio variables; it is more exact when at least one variable is measured on a nominal scale.
C) Y-predicted predicts Y without taking into account values of X.
D) Y-predicted is based on Y's overall mean and ignores the conditional mean of Y.

Question

Quizplus · Accepted Answer

Y-predicted is an "educated guess" because it is based on the assumption of a linear relationship between X and Y, which is rarely perfect in real-world data.

In What Sense Does "Y-Predicted" Provide Only an "Educated Guess