Bayes vs. the Invaders! Part One: The 37th Parallel
From our earlier studies of UFO sightings, a recurring question has been the extent to which the frequency of sightings of inexplicable otherworldly phenomena depends on the population of an area. Intuitively: where there are more people to catch a glimpse of the unknown, there will be more reports of alien visitors. Is this hypothesis, however, true? Do UFO sightings closely follow population or are there other, less comforting, factors at work? […]