Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard...

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation forx is 1.32, and the standard deviation fory
is 4.28.

The regression equation is reported as

 y=−3.1 +1.97xy=-3.1 +1.97x

What fraction of the variation iny can be explained by the variation in the values ofx? (Enter your answer as a decimal between 0 and 1.)