```xml <result> <column_name>avg_non_null</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.85</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> Table-type gate: DIMENSION with no sequence axis makes multiplicative highly implausible. Column name "avg_non_null" explicitly indicates this is a pre-computed average, which is an intensive measure (a level/statistic, not an extensive quantity). Values are strictly positive, centered at 229.9 (far from both 0 and 1), with moderate spread [150, 891]. Summing averages is statistically meaningless; the correct rollup is to re-average (mean of means, weighted if possible). Classified as intensive_additive with mean as primary reducer. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```