2. Association and Correlation: Correlation
Direction of a Linear Relationship: Covariance
Consider the following #5# pair of observations for #X# and #Y#:
\[\begin{array}{|c|c|}
\hline
X&\,Y\,\\
\hline
10&9\\
1&8\\
3&7\\
4&4\\
2&2\\
\hline
\end{array}\]
Complete the table below.
| #X# | #Y# | #X-\bar{X}# | #Y-\bar{Y}# | #(X-\bar{X})(Y-\bar{Y})# |
| #10# | #9# | |||
| #1# |
#8# | |||
| #3# |
#7# | |||
| #4# |
#4# | |||
| #2# |
#2# |
Unlock full access
