Rank the following scores and compute the Spearman correlation:
X  Y 
2  7 
12  3 
9  16 
14  5 
Given info:
The data contains the scores of X and Y:
X  Y 
2  7 
12  3 
9  16 
14  5 
Calculation:
There are
Original data:
X  Y 
2  7 
12  3 
9  16 
14  5 
Ranks from higher to lower values:
X  Y  XY 
4  2  8 
2  4  8 
3  1  3 
1  3  3 

To calculate the spearman correlation we use the ranks of X and Y
Ranks  Differences  
X  Y  D  D^{2} 
4  2 
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