Question: Consider the two random variables X and Y whose values are given below. Note that X and Y are perfectly correlated, though perhaps not linearly correlated. Compute their correlation coefficient.
A B
1 X Y
2 -5 25
3 -4 16
4 -3 9
5 -2 4
6 -1 1
7 0 0
8 1 1
9 2 4
10 3 9
11 4 16