regression of y on x is a noun meaning "the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of y". It carries one recorded sense.
the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of y
statistics
Definitions, synonyms and semantic relations for regression of y on x come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.