👉 In statistics and machine learning, a correlation coefficient (also known as a correlation coefficient) is a measure of the strength and direction of a linear relationship between two variables. It ranges from -1 to +1, where 0 means no linear relationship, while 1 indicates a perfect positive or negative linear relationship. A high positive correlation coefficient suggests that as one variable increases, the other tends to increase at the same rate. A low positive correlation coefficient shows that both variables tend to decrease together. A