Calculate the sample correlation coefficient (r).
We have the following data:
Age (x): x1, x2, x3, x4, x5
Blood Pressure (y): y1, y2, y3, y4, y5
First, we need to find the mean of x and y:
$\bar{x} = \frac{x1 + x2 + x3 + x4 + x5}{5}$
$\bar{y} = \frac{y1 + y2 +
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