In negative correlation, if value of one variable is increasing the value of other variable will be decreasing. The graph of two negatively related variables will be a downwards falling line (Line with a negative slope)
In positive correlation, if the value of one variable in increasing the value of other variable will also be increasing. The graph of two positively related variables will be a upward rising line (Line with positive slope).
Thus, negative and positive correlations behave in opposite manners. So, the correct complete statement will be:
Negative correlation is to positive correlation as variables moving in opposite directions is to variables moving in the same direction
