Question

In a teacher's math course, a linear regression linewas calculated to predict a student's final exam scorefrom the score he received on the midterm. Theequation was 'y = 25.5 + 0.82 where y is thefinal exam score and x is the score on the midterm.AJ scored 90 on the first test.What is the predicted value of his score on the finalexam?- 90?- 95?- 97.5?- 100?- Or none of these

Answer 1

The regression equation is

`y=25.5+0.8x`

Aj score 90 on the 1st test. so

`y=25.5+0.8*90=25.5+72=97.5`

So he scored 97.5 in the final exam.