Calculate coefficient of rank correlation between the marks in economics and statistics as indicated by 7 answer book of each subject.

X

20

11

72

65

43

29

50

Y

60

63

26

35

43

51

37

X

Y

R1

R2

D = (R1 – R2)

D2

20

60

2

6

–4

16

11

63

1

7

–6

36

72

26

7

1

6

36

65

35

6

2

4

16

43

43

4

4

0

0

29

51

3

5

–2

4

50

37

5

3

2

4

 

 

 

 

 

ΣD2 = 112

 

Thus, Spearman's rank correlation coefficient is (- 1). 

  • -1

Its answer is -1

  • 0
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