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What is Understanding Correlation Coefficient about?

The document discusses the correlation coefficient, which measures the linear association between two variables from -1 to 1. It provides an example calculating the Pearson product-moment correlation coefficient between the smoking index and lung cancer mortality index using data from 25 paired measurements. The correlation coefficient of 0.69 indicates a positive linear relationship between smoking and lung cancer mortality. Statistical tests confirm the correlation is statistically significant.

Author

Rohan Kumar

Language

EN