A small, experimental plane has three engines, one of which is redundant

A small, experimental plane has three engines, one of which is redundant. That is, as long as two of the engines are working, the plane will stay in the air. Over the course of a typical flight, there is a 1/3 chance that engine one will fail. There is a 79% probability that engine two will work. The third engine works only half the time. What is the probability that the plane will crash in any given flight?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #1853