The freshmen at a large university are required to take a battery of aptitude tests. Students who score high on the mathematics test also tend to score high on the physics test. On both tests, the average score is 60; the SDs are the same too. The scatter diagram is football-shaped. Of the students who scored about 75 on the mathematics test:

(i) just about half scored over 75 on the physics test.

(ii) more than half scored over 75 on the physics test.

(iii) less than half scored over 75 on the physics test.

Choose one option and explain. pl875