Guided Example #1 - Regression and Correlation

A random sample of 23 students produced the following equation for the line of best fit ${\displaystyle y^{\text{'}}=-138+4x}$ Where x is the third exam score, out of 100, and y is the final exam score, out of 200. What would you predict the final exam score to be for a student who scored a 75 on the third exam?

A. ${\displaystyle 46}$     B. ${\displaystyle 262}$     C. ${\displaystyle 162}$     D. ${\displaystyle 126}$