Mathematics, 20.03.2020 10:16, FailingstudentXD
In a simple linear regression problem, if the correlation coefficient is 0.98, this means that about 96% of the total variation in y can be explained by the regression line. about 98% of the x values are equal. about 96% of the y values are positive. about 96% of the total variation in x can be explained by the regression line. about 98% of the total variation in y can be explained by the regression line.
Answers: 3
and on this case 
, so then the % of variation explained by the model is 96.04%.![r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}](/tpl/images/0555/9028/ec454.png)
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In a simple linear regression problem, if the correlation coefficient is 0.98, this means that about...
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