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Unformatted text preview: another. This means that the more a student studies the more likely the student is going to get higher test grades. The study hours are represented by the xaxis, or the explanatory variable, and the average test scores are represented by the yaxis, or the response variable. The regression line is there to show the formation of the dots on the scatter plot. The association between the two variables can be seen by the regression line and the correlation coefficient. The correlation coefficient found in excel is 0.888522864. This shows how strong of a correlation the data set has....
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 Summer '08
 AKBAS
 Statistics

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