Saved Bookmarks
| 1. |
The rank of 8 same students in tests in Mathematics and Statistics were as follows : Calculate the coefficient of rank correlation. |
Answer» Solution : `r_(K)=1-(6sumD^(2))/(N^(3)-N)` Here , `N=8,sumD^(2)=40` SUBSTITUTING the values, we get `r_(k)=1-(6xx40)/((8)^(3)-8)=1-(240)/(512-8)=1-(240)/(504)=1-0.48=0.52` Coefficient of Rank CORRELATION `(r_(k))=0.52` |
|