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In analyzing hits by bombs in a past war, a city was subdivided into 471 regions,...

In analyzing hits by bombs in a past war, a city was subdivided into 471 regions, each with an area of 0.5-km². A total of 390 bombs hit the combined area of 471 regions. The Poisson distribution applies because we are dealing with the occurrences of an event (bomb hits) over some interval (a region with area of 0.5-km².

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