A correlation coefficient is a measure of the strength and direction of a linear relationship between two variables. It can range from -1 to 1, with a value of 0 indicating no correlation, a value of 1 indicating a perfect positive correlation, and a value of -1 indicating a perfect negative correlation.
The correlation coefficient can be used to determine whether there is a statistically significant relationship between two variables. A statistically significant relationship means that the relationship is unlikely to have occurred by chance.
