Standard deviation for final results

Neos

New Member
#1
Hi,

I have several groups of samples which each group has own average and SD. I use the average of each group to calculate the difference between each group and my reference group using this equation (2^-("Average of the group1" - "Average of the Ref group")). I wonder how can I calculate the SD for the result of this equation?
*Number of samples is different in different groups.

Thank you,