Two ladies were asked to rank 10 different types of cell phone . The rank given by them are given below. Calculate Spearman's rank correlation coefficient

Two ladies were asked to rank 10 different types of cell phone . The r

1.	Two ladies were asked to rank 10 different types of cell phone . The rank given by them are given below. Calculate Spearman's rank correlation coefficient
Answer» Solution : `r_(k)=1-(sumD^(2))/(N^(3)-N)` Here, `N=10,sumD^(2)=100` Susbstituting the values, we get `r_(k)=1-(6xx100)/(10^(3)-10)` `=1-(600)/(1,000-10)` `=1-(600)/(900)` `=1-0.606` `= 0.394` Coefficient of RANK Correlation `(r_(k))=0.394`