If you treat lognormal data as if it were normally distributed in grade/tonnage calculations, (i.e. you do not transform the data), do you tend to overestimate or underestimate the portion payable? O Overestimate O UnderestimateIf you treat lognormal data as if it were normally distributed in grade/tonnage calculations, (i.e. you do not transform the data), do you tend to overestimate or underestimate the average grade above cut off? O Overestimate O Underestimate