Answer
$\approx-0.95$
Work Step by Step
$\sum x=37$, $\sum y=38$, $\sum xy=146$, $\sum x^2=252$, $\sum y^2=266$, $n=7$(the number of data points)
Thus the correlation coefficient is: $\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{n(\sum x^2)-(\sum x)^2}\sqrt{n(\sum y^2)-(\sum y)^2}}=\frac{7(146)-(37)(38)}{\sqrt{7(252)-(37)^2}\sqrt{7(266)-(38)^2}}\approx-0.95$ where
