Question

The following data gives the number of hours 7 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 0.5 1 1.5 2.5 3.5 4 4.5 Midterm Grades 69 72 75 81 84 90 96

Step 3 of 3 : Calculate the coefficient of determination, r2. Round your answer to three decimal places.

Answer 1

Hours Spent Studying (x)	Midterm Grades (y)	x2	y2	xy
0.5	69	0.25	4761	34.5
1	72	1	5184	72
1.5	75	2.25	5625	112.5
2.5	81	6.25	6561	202.5
3.5	84	12.25	7056	294
4	90	16	8100	360
4.5	96	20.25	9216	432
17.5	567	58.25	46503	1507.5