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February 1, 2015

February 1, 2015

Posted by **Anonymous** on Saturday, April 6, 2013 at 5:16pm.

- statistics -
**MathMate**, Saturday, April 6, 2013 at 6:02pmSelected students means you are dealing with a sample from a population.

The best you can do with a sample is to estimate the correlation coefficient of the population, or the correlation coefficient of the sample.

See the formulas and examples from:

http://stattrek.com/statistics/correlation.aspx

http://www.vitutor.com/statistics/regression/correlation_coefficient.html

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