A random sample of 11 hikers produced the following data, where x is the age of the hiker,and y is the maximum number
of miles hiked per week. The data are presented below in the table of values:
\begin{array}{cc}
(\ x\ )\ &\ (\ y\ )\ \\
6\ &\ 19\ \\
7\ &\ 26\ \\
10\ &\ 35\ \\
13\ &\ 34\ \\
14\ &\ 36\ \\
17\ &\ 45\ \\
18\ &\ 44\ \\
20\ &\ 54\ \\
23\ &\ 48\ \\
24\ &\ 67\ \\
25\ &\ 53
\end{array}