UNDERSTANDING THE RELATIONSHIPS

UNDERSTANDING THE RELATIONSHIPS

Designed by Engin A. Sungur

Here are the first and second exam scores of students for five different courses. Analyze the data to understand the relationship between the first and second exam scores.

COURSE A

FIRST EXAM SCORE	SECOND EXAM SCORE
30	39
20	37
42	37
34	41
34	22
26	32
41	28
34	40
20	29
29	19
26	42
35	41
32	42
38	31
29	18
41	31
42	24
33	25
34	24
92	92

COURSE B

FIRST EXAM SCORE	SECOND EXAM SCORE
22	43
30	34
21	53
20	46
48	21
28	35
24	31
46	41
29	33
32	31
20	18
42	31
34	33
51	54
29	31
48	43
28	31
21	18
21	33
52	30
43	36
53	47
22	45
22	34
52	29
72	70
75	77
71	67
67	80
78	74

COURSE C

FIRST EXAM SCORE	SECOND EXAM SCORE
24	26
36	34
38	40
46	48
52	54
60	58
64	62
68	70
74	72
98	50

COURSE D

FIRST EXAM SCORE	SECOND EXAM SCORE
81	61
49	56
85	93
4	27
66	42
72	63
81	94
40	66
31	60
27	54
35	12
68	84
5	20
45	17
14	7
69	92
31	75
53	58
87	64
18	3
29	38
50	31

COURSE E

FIRST EXAM SCORE	SECOND EXAM SCORE
26	23
27	21
30	15
33	12
37	7
39	5
46	1
48	0
60	4
62	6
63	6
67	11
72	19
73	21
75	26
77	29
77	29
80	37
85	49
92	69
93	73
96	85