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Question

In a Fancy-dress competition, two judges accorded the following ranks to eight participants:
Judge X 8 7 6 3 2 1 5 4
Judge Y 7 5 4 1 3 2 6 8
Calculate coefficient of rank correlation.

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Solution

RX RY D = RX RY D2
8
7
6
3
2
1
5
4
7
5
4
1
3
2
6
8
1
2
2
2
–1
–1
–1
–4
1
4
4
4
1
1
1
16
D2=32

N = 8
rk= 1-6D2N3 -Nor, rk=1-6×32512-8=504-192504=0.619Hence, rk=0.619

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