This is the first chapter of the book Probability and Distributions presented as a sample reading.

Continue reading## Correlation

Correlation is used to measure the mutual relationship between two or more variables. Correlation coefficient is the numerical measure of the relationship between two variables.

Continue reading## Significance of Correlation Coefficient

If the value of correlation coefficient is zero there is no relationship between variables. Hypothesis testing for population correlation coefficient can be done to determine the significance of the correlation coefficient or significance of the relationship between variables.

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