What does it mean if a function's correlation coefficient is negative?
As explained below
In statistics, when two variables are compared, then negative correlation means that when one variable increases,the other decreases or vice versa. A perfect negative correlation is represented by the value -1.00, while a 0.00 indicates no correlation and a +1.00 indicates a perfect positive correlation. A perfect negative correlation means that the relationship that appears to exist between two variables is negative 100% of the time.