```xml <result> <column_name>rating_std_dev</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.92</confidence> <requires_user_confirmation>false</requires_user_confirmation> <sum_meaningful>false</sum_meaningful> <signed>false</signed> <reducers> <primary_reducer>mean</primary_reducer> <valid_reducers>mean, min, max, median, distribution</valid_reducers> <excluded_reducers>sum (summing standard deviations is statistically meaningless), product (not a ratio)</excluded_reducers> <average_semantics>arithmetic_mean</average_semantics> </reducers> <inner_outer_measure> <inner_measure_reducer>min</inner_measure_reducer> <outer_measure_reducer>max</outer_measure_reducer> </inner_outer_measure> <multiplicative_partner_derivable>false</multiplicative_partner_derivable> <reasoning> DIMENSION table with no sequence axis strongly priors against multiplicative. Column name "rating_std_dev" identifies this as a standard deviation statistic—a dispersion measure that is an absolute level/intensity, not an extensive quantity. Center of mass (mean=0.28, median=0.29) is far from 1.0, ruling out ratio_multiplicative. Standard deviations cannot be meaningfully summed across entities (variance can be, but std dev cannot), making this intensive_additive. The presence of zeros (37%) is consistent with zero-variance subsets. High confidence due to clear statistical semantics. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```