what means correlation why is correlation constant how does correlation need to be constant do two variables need a correlation does correlation have a relationship between the two variables what is the relation between variables i think is related to the correlation graphs what's the difference between two variables do correlations require constant difference what is the difference in a graph? what's the difference between two vectors does correlation imply a relatively constant difference does a correlation require a relative constant what does correlation mean what is a good relationship between a graph and a variable in the teh table? what is the definition of correlation which of the following describes the relationship between two variables does correlation mean a constant value how do you find correlation what is the correlation between the two vectors that needs to be constant what determines the correlation between two variables