Spurious relationship
MATHEMATICAL RELATIONSHIP IN WHICH TWO OR MORE EVENTS OR VARIABLES ARE ASSOCIATED BUT NOT CAUSALLY RELATED, DUE TO EITHER COINCIDENCE OR THE PRESENCE OF A CERTAIN THIRD, UNSEEN FACTOR
Joint effect; Nonspuriousness; Non-spuriousness; Third Variable Problem; Fallacy of causation; Spurious correlation; Specious correlation
In statistics, a spurious relationship or spurious correlationBurns, William C., "Spurious Correlations", 1997.