2. Association and Correlation: Correlation
Monotonic Relationship: Spearman Correlation Coefficient
Consider the following #5# pairs of data points:
\[\begin{array}{|c|c|}
\hline
X&\,Y\,\\
\hline
2&4\\
2&2\\
3&7\\
9&2\\
5&5\\
\hline
\end{array}\]
Give the separate rankings of the variables #X# and #Y#
| #X# | #Y# | rank #X# | rank #Y# |
| #2# | #4# | ||
| #2# | #2# | ||
| #3# | #7# | ||
| #9# | #2# | ||
| #5# | #5# |
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