50. Earthquakes Suppose the probability of a major earthquake on a given day is 1 out of 10,000. a. What's the expected number of major earthquakes in the next 1000 days? b. Use the Poisson model to approximate the probability that there will be at least one major earthquake in the next 1000 days. 51. Seatbelts II Police estimate that 80% of drivers now wear their seatbelts. They set up a safety roadblock, stopping cars to check for seatbelt use. at to stop before finding a driver whose seatbelt is not

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