It's not 0.9158 or w/ the added 5 XP

Friend - Number of hours of studying per week - Grade Point Average (out of 5.0)
Allie - 14 - 3.91
Samantha - 42 - 4.98
Hayley - 10 - 3.22
Jessica - 32 - 4.81
Megan - 5 - 2.0
Rachel - 10 - 2.82
Briley - 25 - 3.79
Lauren - 18 - 3.48