# Mean error?

smither777
hi,

can you help me in obtaining the mean error? I was able to obtain the standard deviation for my data, but i don't know how to get the mean error..
thank you very much!

Homework Helper
smither777 said:
hi,

can you help me in obtaining the mean error? I was able to obtain the standard deviation for my data, but i don't know how to get the mean error..
thank you very much!
The error is
|x-mean(x)|
so the mean error is
mean(|x-mean(x)|)
I think this is what is intended, but usually this quantity is called the mean absolute deviation.
The other posibility is if you knew for each sample what should have resulted then it could mean
mean(x_experimental-x_actual)
or
mean(|x_experimental-x_actual|)
Can't you look up exactly what was "mean error" means?