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# Mean and standard deviation

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Suppose that the hurricane record over a 10-year period at a certain coastal city in Florida is as follows.(picture in attachments) The occurrence of hurricanes can be described by a Poisson process.  The maximum wind speed of hurricanes shows considerable fluctuation.  Suppose that those recorded in this city can be fitted satisfactorily by a lognormal distribution with mean = 100 ft/sec and standard deviation = 20 ft/sec.a) Based on the available data, find the probability that there will be at least 1 hurricane in this city in the next 2 years.b) If a structure in this city is designed for a wind speed of 130 ft/sec, what is the probability that the structure will be damaged (design wind speed exceeded) by the next hurricane?c) What is the probability that there will be at most 2 hurricanes in the next 2 years, and that no structure will be damaged during this period?MUST SHOW WORK

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