Question

name: gabriel villot

1. what is r - squared from your scatterplot?
2. what is r, from previous question?

Explanation:

Step1: Recall the relationship between R - squared and R

The relationship between the coefficient of determination ($R^{2}$) and the correlation coefficient ($R$) is $R=\pm\sqrt{R^{2}}$.

Step2: Calculate R given $R^{2}$

Given $R^{2} = 0.8735$, then $R=\pm\sqrt{0.8735}\approx\pm0.9346$.

Answer:

1. $0.8735$
2. $\pm0.9346$