[" The rank Correlation between "X" and "Y" of "N=10" is found to be "0.5" .Find the sum of squares "],[" of differences of ranks."]

Find out rank difference of X and Y:

The coefficients of rank correlation between marks in Mathematics and marks in Physics obtained by a certain group of students is 0.8. If the sum of the squars of the difference in the rank is given to be 33, then find the number of students in the group.

Find the Kari Pearson's Coefficient of correlation between x and y for the data

Find the Karl Pearson's coefficient of correlation between X and Y for the following data :

The Spearman's rank correlation coefficient = (9)/(11) , given sum d^(2) = 30 . Find the number of observation.