Last year, five randomly selected students took a math aptitude test before they began their statistics course. The Statistics Department has two questions.

a)What linear regression equation best predicts statistics performance, based on math aptitude scores?

b)If a student made 70 on the aptitude test, what grade would we expect her to make in statistics?

Math Aptitude test score

Statistics grade

95

85

85

95

80

70

70

65

60

70