I am getting below error while performing monte carlo. Please find the attachment.
You have a double underscore in the definitions for mu_Go1_R2t and mu_Go2_R2b, one too many just before the 'G'. And also in the table Rvals.
Units should be OK, since:
You have brackets around sigma_r2...?
I have no further clues, sorry. (And I'm limited to Express = montecarlo doesn't work for me.)
You should ALWAYS attach the worksheet, or a worksheet, that demonstrates to problem that you have.
From quick observation of the picture, you equation appears to be unit-balanced. But:
If your R values (R0, R1 and R2s) have a sigma of 0, then you probably shouldn't include them in the montecarlo.
However I doubt that you are so sure these resistor values are always exactly the same value.
So another option is to have them vary by at least 1 Ohm or so.