Question

Malaysian airlines flight 370 went missing on March 8th, 2014. Suppose it is presumed to have gone down in one of three equally likely regions of the ocean. For i = 1,2,3, let 1-A denote the probability the plane will be found during a search of region i when the plane is, in fact, in region i. What is the probability the plane is in the ith region, fori 1,2,3, if it was not found during a search of region 2?

Answer 1