# Standard deviation of errors

I have a multiple regression model (information derived from gretl):

$$Y=‐3,859921 \ln(P) + 1,707514\, (A) + 3,578656$$

$$\quad\quad\space(1,216387)\quad\quad\quad(1,259650)\quad\quad(0,323867)$$

the standard errors of the parameter estimates are underneath.

How to calculate the standard deviation of errors?

• Thx for your answer! By standard deviation of errors I mean: the stdev of the error terms of the two parameter $P$ and $A$ – Le Max Apr 29 '13 at 19:42