Correlation between Numerical Variables - Estimating a linear correlation coefficient
3 important questions on Correlation between Numerical Variables - Estimating a linear correlation coefficient
Give the symbols for correlation coefficient of a population and of a sample.
Correlation in sample: r
The correlation coefficient is calculated from the sum of squares and the sum of products. What is the difference between these two?
The sum of squares are the standard deviations within X and Y.
What does a r=1 mean for the correlation between X and Y?
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