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Compute the spearman rank correlation coefficient

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Reference no: EM131382012

Using the table below compute the spearman rank correlation coefficient for the aggressiveness scores. Does this suggest that both twins tend to be similar in degrees of aggressiveness?

Twin set

1st born aggressiveness scores (rank) x

2nd born aggressiveness scores (rank) y

Ranked pair (x.y)

Term r(x1)r(y1)

1

85(8)

88(10)

(8,10)

80

2

71(3.5)

78(7)

(3.5,7)

24.5

3

79(6.5)

75(5.5)

(6.5,5.5)

35.75

4

69(1)

64(2.5)

(1,2.5)

2.5

5

92(12)

96(12)

(12,12)

144

6

72(5)

72(4)

(5,4)

20

7

79(6.5)

64(2.5)

(6.5,2.5)

16.25

8

91(11)

89(11)

(11,11)

121

9

70(2)

62(1)

(2,1)

2

10

71(3.5)

80(9)

(3.5,9)

31.5

11

89(10)

79(8)

(10,8)

80

12

87(9)

75(5.5)

(9,5.5)

49.5

Reference no: EM131382012

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