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Given that a data set containing 200 monthly wave height maxima fit the Gumbel distribution. Ninety...

Given that a data set containing 200 monthly wave height maxima fit the Gumbel distribution. Ninety (90) of these were less than 12 feet in height, i.e. P (H < 12) = 90/200 and the Gumbel parameter a = 0.15. Find P(H > 40 feet).

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