In a fancy-dress competition, two judges accorded following ranks to the 10 participants : Calculate coefficient of rank correlation

In a fancy-dress competition, two judges accorded following ranks to t

1.	In a fancy-dress competition, two judges accorded following ranks to the 10 participants : Calculate coefficient of rank correlation
Answer» Solution : `r_(K)=1-(6sumD^(2))/(N^(3)-N)` Here, N=10,`sumD^(2)=264` `r_(k)=1-(6xx264)/((10)^(3)-10)` `=1-(1,584)/(990)` `=1-1.6=-0.6` Coefficient of Rank Correlation (`r_(k)`)=-0.6 There is a negative coefficient of rank correlation of the tune of -0.6 which is fairly high. High negative correlation suggets that two sets of judgements are fairly opposite to each other.