when does a log of variables have to be taken why do we take logs of variables why do we take a log of variables why is it useful to take logs of variables what is the difference between a log and graph why does an economics log need to be taken what is the central limit theorem used to calculate the log of variables? why should you take log of variable why do people use the log for regression why should we take log of variables why should we take a log of a variable what is the log of the variable why is it important to take logs and transform them? when we take the log of a variable we want why take log of variables why are we taking logs what is the purpose of taking logs when we take the log of a variable we why do we use logs why would we take the log of variables?