When people ask "What are the odds?" they usually mean it rhetorically. They don't really want to know.
Godwin's law: As an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches 1.
"Probabilistic" comes from Latin. "Stochastic" comes from Greek.
If P(A | B) > P(A) then P(B | A) > P(B). If B makes A more likely then A makes B more likely.