How to Calculate Correlation Between Variables?

Answer Researchers often want to know how certain variables are correlated and how closely they are correlated. Whenever a correlation between two variables exists, one variable will change when the other... Read More »

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How to Calculate the Correlation Between Two Variables?

The correlation between two variables describes the likelihood that a change in one variable will cause a proportional change in the other variable. A high correlation between two variables suggest... Read More »

How to Calculate the Coefficient of Correlation?

Population and sample formulas--same calculations, different symbolsThe coefficient of correlation is used in conjunction with a scatter diagram and the covariance to provide a measure of the stren... Read More »

How to Calculate Correlation Coefficients on the TI-83?

British Prime Minister Benjamin Disraeli famously said, according to Mark Twain, "There are three kinds of lies: lies, damned lies and statistics." Statistics, however, allow statisticians to categ... Read More »

How to Calculate a Correlation Coefficient?

The correlation coefficient is a number that ranges from one to negative one and demonstrates the strength of the relationship between two variables. If the number is near zero, it is weak. When t... Read More »