A resurrection's prior probability is very, very low. Just add up all the people who have died without being resurrected, and then do the same for those who died and were known to have been resurrected. Which number is larger? Most people stay dead when they die. Thus the prior probability for Christianity's key claim is very low.

And it's the same for all miracle claims, by definition, because a miracle goes against the grain of human experience, being a violation of natural law. Empirically speaking, natural laws are generalizations that reflect the bulk of our experience.