192,443 views
9 votes
9 votes
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

User David Murray
by
2.7k points

1 Answer

18 votes
18 votes

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.

User Wim Mertens
by
3.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.