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Problem 1

 

11.7 Finding r-squared the Coefficient of Determination

Use the crime data above to calculate the correlation coefficient for the variables % earning < $5,000 and murder rate. Is there linear relationship? If so is it positive or negative?
Note:
SSxx 199.732
SSxy 511.192
SSyy 1855.202

Calculate the coefficient of determination, r2 for the problem above and interpret it.
 

 

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