Presumptions In A Civil Case Generally

(a) Effect. In a civil case, unless a statute or these rules provide otherwise, if facts giving rise to a presumption are established by credible evidence, the presumption substitutes for evidence of the existence of the fact presumed. (b) Rebuttal. If the trier of fact finds from credible evidence that the fact presumed does not exist, the presumption is rebutted and ceases to operate. A party against whom a presumption is directed has the burden of proving that the nonexistence of the presumed fact is more probable than its existence. (c) Inconsistent Presumptions. If presumptions are inconsistent, the presumption applies that is founded upon weightier considerations of policy. If considerations of policy are of equal weight neither presumption applies.