Find the equation of the least squares line.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs.    Entering GPA (x) Current GPA (y)   3.5 3.6 3.8 3.7 3.6 3.9 3.6 3.6 3.5 3.9 3.9 3.8 4.0 3.7 3.9 3.9 3.5 3.8 3.7 4.0  

A. y = 4.91 + 0.0212x
B. y = 2.51 + 0.329x
C. y = 3.67 + 0.0313x
D. y = 5.81 + 0.497x


Answer: C

Mathematics

You might also like to view...

The concentration C, in milligrams per deciliter, of a drug in the bloodstream t hours after it is administered is  ? .   What is the maximum concentration ever achieved? ?

A. 7 milligrams per deciliter B. 3.21 milligrams per deciliter C. 6 milligrams per deciliter D. 2.21 milligrams per deciliter

Mathematics

Add and, if possible, simplify. + 

A.
B.
C.
D.

Mathematics

Simplify

Mathematics

If a family has 7 children, in how many ways could the parents have 3 boys and 4 girls as children? ?  

A. 7 B. 38 C. 3 D. 40 E. 35

Mathematics