Fitting Linear Models to Data · Exercise 30

Use each set of data to calculate the regression line using a calculator or other technology tool, and determine the correlation coefficient to 3 decimal places of accuracy.

$$\begin{array}{cc}x& y\\ \text{4}& \text{44.8}\\ \text{5}& \text{43.1}\\ \text{6}& \text{38.8}\\ \text{7}& \text{39}\\ \text{8}& \text{38}\\ \text{9}& \text{32.7}\\ \text{10}& \text{30.1}\\ \text{11}& \text{29.3}\\ \text{12}& \text{27}\\ \text{13}& \text{25.8}\end{array}$$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §4.3 Fitting Linear Models to Data · Exercise 30