# Standard errors for each level?

#### mftw

##### New Member
I have a bunch of variables with two possible values: 1 for "Yes" and 2 for "No". I need to get the standard errors for each separately (the standard error for "yes" and the standard error for "no"), but in SPSS, I can only find how to get standard errors for means. Anyone know a quick way to get standard errors for each level individually? Thanks!!

#### ichbin

##### New Member
If P is the probability of yes, then (1-P) is the probability of no. If you known P with error e, then you know (1-P) with exactly the same error. If yes is coded a 1 and no as 0, then the mean is the probability of yes, so the error bar on the mean is the error bar on the probability of yes.

#### mftw

##### New Member
Thanks! Just to clarify: the variables are survey questions, so with the answer choices "Yes" and "No". So what I need to do is get the frequencies of each answer choice and the standard error for each as well.

#### chetan.apa

##### Member
If you known P with error e, then...
@ichbin
I didn't quite understood what you mean by this. Why should there be a distribution for probability of an event?