2. Association and Correlation: Correlation
Direction of a Linear Relationship: Covariance
Consider the following #5# pair of observations for #X# and #Y#:
\[\begin{array}{|c|c|}
\hline
X&\,Y\,\\
\hline
10&5\\
7&2\\
4&10\\
9&8\\
5&5\\
\hline
\end{array}\]
Complete the table below.
#X# | #Y# | #X-\bar{X}# | #Y-\bar{Y}# | #(X-\bar{X})(Y-\bar{Y})# |
#10# | #5# | |||
#7# |
#2# | |||
#4# |
#10# | |||
#9# |
#8# | |||
#5# |
#5# |
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