Correlation coefficient, Econometrics

a) Explain what is calculated by a correlation coefficient.

b) Why do economists commonly find regression a more useful tool than correlation?

c) In a sample of 102 men the correlation among age and monthly donations to charity is found to be 0.2.Test whether this correlation is significantly among from zero and comment on your result.

Posted Date: 3/25/2013 5:56:41 AM | Location : United States







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