Summary: This module provides an overview of Linear Regression and Correlation: Prediction Up one level as a part of Collaborative Statistics collection (col10522) by Barbara Illowsky and Susan Dean.

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The exam scores *(* range from 65 to 75. Suppose you want to know the final
exam score of statistics students who received 73 on the third exam.

We predict that a statistics student who receives a 73 on the third exam will receive 179.08 on
the final exam. *Remember, do not use the regression equation to predict values outside
the domain of *

Recall the third exam/final exam example.

What would you predict the final exam score to be for a student who scored a 66 on the third exam?

145.27

What would you predict the final exam score to be for a student who scored a 78 on the third exam?

78 is outside of the domain of x values (independent variables), so you cannot reliably predict the final exam score for this student.