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 for x is 2.12, and the standard deviation for y is 5.58. The regression equation is reported a

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Author:Amos Gilat
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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 for x is 2.12, and the standard deviation for y is 5.58. The regression equation is reported as y= -3.3 + 1.98x
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 for x
is 2.12, and the standard deviation for y is 5.58. The regression equation is reported as
y = – 3.3 + 1.98r
What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer
as a decimal between 0 and 1.)
Transcribed Image Text: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 for x is 2.12, and the standard deviation for y is 5.58. The regression equation is reported as y = – 3.3 + 1.98r What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)
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