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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?
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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