I'm using Geostatistical analysis tool to do spatial analysis (ordinary Kriging). I log transformed my data point within the wizard before I go ahead to do the analysis. I know analysis tool will be back log transform my data by the end of analysis. But I'm wondering if the back log transform algorithm built-in with ArcGIS software considered variance when it calculated back transformed data. I searched through google, I couldn't find any information for it. I'll really apppreciate it if anyone could answer my question promptly. Thanks.