```xml <result> <column_name>last_9m_avg</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.88</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 (averaging an average is meaningless; must re-average), 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: multiplicative highly implausible (gate prior). Column name "last_9m_avg" explicitly indicates this is an already-averaged value (intensive level). Center-of-mass (mean 5.99, median 6.34) is far from both 0.0 and 1.0, ruling out ratio_multiplicative. No zeros, strictly positive, bounded range [2.43, 6.89] consistent with an averaged metric. This is an intensive additive measure where summing is meaningless (you cannot sum averages); the correct rollup is to re-average. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```