Hours Studying and Test Grades
Time (hours) Grade
1 66
2.5 70
3 81
3.5 92
4 97

Jennifer believes that she can predict her test scores based on how long she studies. She asks 5 of her friends how long they studied and what grade they made on the test and then preforms a regression to model the data. Her data is shown in the table. Which function best models the data?

Question

Hours Studying and Test Grades
Time (hours) 	Grade
1 	66
2.5 	70
3 	81
3.5 	92
4 	97

Jennifer believes that she can predict her test scores based on how long she studies. She asks 5 of her friends how long they studied and what grade they made on the test and then preforms a regression to model the data. Her data is shown in the table. Which function best models the data?

anonymous · Answer

y = 59.576(1.108)x		
	

B)
	y = 63.461(1.105)x		
	

C)
	y = 2.833x2 - 3.833x + 67 	
	

D)
	y = 7.733x2 - 24.4x + 82.667

anonymous · Answer

Have worked all of them for all points, but the only one that comes close
to 97 after 4 hrs of  study is  C.    A and B look odd.