Roger spent 45 minutes studying for the test. Assuming the trend that exists in the data set below applies to Roger as well, approximately which grade should Roger expect to receive on the test?

Time Spent Studying (minutes)
Grade on Test (%)
0
28
0
54
30
45
30
39
30
63
60
53
60
75
90
85
90
78
120
92
120
100
120
98
120
89
180
99
180
95

A.
22%
B.
12%
C.
60%
D.
82%

Question

Roger spent 45 minutes studying for the test. Assuming the trend that exists in the data set below applies to Roger as well, approximately which grade should Roger expect to receive on the test?

Time Spent Studying (minutes)
Grade on Test (%)
0
28
0
54
30
45
30
39
30
63
60
53
60
75
90
85
90
78
120
92
120
100
120
98
120
89
180
99
180
95
 	 
A.
22%
B.
12%
C.
60%
D.
82%

aussiebabe23 · Answer

Can't understand your table bc its all in one straight line... Don't know what are minutes and what are scores

moss65 · Answer

may be I am wrong, but average grade for 30-minute study is 49, the average grade for 60-minute study is 64. 45 minutes are in between, so the average Roger's grade 56.5 or ~ 60 %